Constantine Stephanidis
Has also published under the name of:
"C. Stephanidis" and "Constantinos Stephanidis"
About the author:
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Publications by Constantine Stephanidis (bibliography)
» 2009 «
Karampelas, Panagiotis, Basdekis, Ioannis and Stephanidis, Constantine (2009): Web user interface design strategy: Designing for device independence. In: Constantine, Stephanidis (ed.) Proceedings of the 13th International Conference on Human-Computer Interaction HCI International 2009 July 19-24, 2009, San Diego, CA, USA. pp. 515-524.
“Until recently, Web services were available only through a desktop web browser. Nowadays, methods of access move beyond the desktop computer towards ubiquitous access through portable devices. As a consequence, users have the chance to interact with a growing diversity of computing devices such as PDAs, smart phones, etc., with diverse characteristics that tend to replace conventional laptop and desktop computers. User interface designers, on the other hand, strive to design usable interfaces to cater for the diverse requirements of these devices. The design strategy proposed in this paper aims at assisting user interface designers in designing for diverse devices recommending a specific line of activities in the process of design. A case study of application of the proposed design strategy is presented, outlining its advantages.”
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» 2008 «
Margetis, George, Ntoa, Stavroula and Stephanidis, Constantine (2008): Requirements of Users with Disabilities for E-government Services in Greece. In: Miesenberger, Klaus, Klaus, Joachim, Zagler, Wolfgang L. and Karshmer, Arthur I. (eds.) ICCHP 2008 - Computers Helping People with Special Needs - 11th International Conference July 9-11, 2008, Linz, Austria. pp. 438-445. Available online
Doulgeraki, Constantina, Partarakis, Nikolaos, Mourouzis, Alexandros and Stephanidis, Constantine (2008): A Development Toolkit for Unified Web-Based User Interfaces. In: Miesenberger, Klaus, Klaus, Joachim, Zagler, Wolfgang L. and Karshmer, Arthur I. (eds.) ICCHP 2008 - Computers Helping People with Special Needs - 11th International Conference July 9-11, 2008, Linz, Austria. pp. 346-353. Available online
Mourouzis, Alexandros, Partarakis, Nikolaos, Doulgeraki, Constantina, Galanakis, C. and Stephanidis, Constantine (2008): An Accessible Media Player as a User Agent for the Web. In: Miesenberger, Klaus, Klaus, Joachim, Zagler, Wolfgang L. and Karshmer, Arthur I. (eds.) ICCHP 2008 - Computers Helping People with Special Needs - 11th International Conference July 9-11, 2008, Linz, Austria. pp. 474-481. Available online
Savidis, Anthony, Zidianakis, Manolis, Kazepis, Nikolaos, Dubulakis, Stephanos, Gramenos, Dimitrios and Stephanidis, Constantine (2008): An Integrated Platform for the Management of Mobile Location-Aware Information Systems. In: Indulska, Jadwiga, Patterson, Donald J., Rodden, Tom and Ott, Max (eds.) Pervasive 2008 - Pervasive Computing, 6th International Conference May 19-22, 2008, Sydney, Australia. pp. 128-145. Available online
» 2007 «
Stephanidis, Constantine and Pieper, Michael (2007): User Interfaces For All”: Universal Access in Ambient Intelligence Environments. Springer
Grammenos, Dimitris, Savidis, Anthony, Georgalis, Yannis, Bourdenas, Themistoklis and Stephanidis, Constantine (2007): Dual educational electronic textbooks: the starlight platform. In: Ninth Annual ACM Conference on Assistive Technologies 2007. pp. 107-114. Available online
“This paper presents a novel software platform for developing and interacting with multimodal interactive electronic textbooks that provide a Dual User Interface, i.e., an interface concurrently accessible by visually impaired and sighted persons. The platform, named Starlight, comprises two sub-systems: (a) the "Writer", facilitating the authoring of electronic textbooks, encompassing various categories of interactive exercises (Q&A, multiple choice, fill in the blanks, etc.); and (b) the "Reader", enabling multimodal interaction with the created electronic textbooks, supporting various features like searching, book-marking, replay of sentences / paragraphs, user annotations / comments, activity recording, and context-sensitive help. An iterative, user-centered design process was adopted, involving from the very early stages students and educators, resulting in the creation of eight textbooks for the primary and high school that are currently available in the Greek market. The paper discusses the competitive features of the Dual User Interface and of supplied functionality compared to existing accessible electronic books. It also consolidates the key design findings, elaborating on prominent design issues, design rational, and respective solutions, highlighting strengths and weaknesses, and outlining directions for future work.”
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Savidis, Anthony, Grammenos, Dimitris and Stephanidis, Constantine (2007): Developing inclusive e-learning and e-entertainment to effectively accommodate learning difficulties. In Universal Access in the Information Society, 5 (4) pp. 401-419
“The real-life training of people with learning difficulties is a highly challenging and demanding process that can be effectively improved with the deployment of special-purpose software instruments. This paper discusses the development and evaluation of two inclusive training applications and two games for people with learning difficulties. Namely, the four developed systems are: (a) a cashier training applications; (b) a sewing training applications; (c) an accessible pong game; and (d) an accessible action game. The main objective of the work was to investigate the hypothesis that computer games, as pleasant, motivating and highly engaging interactive experiences, can have a significant role on improving the training of people with learning difficulties, such as attention deficit disorder or Asperger syndrome. The obtained results are very positive and encouraging, and have led to the identification of new research directions, blending training and playing, via novel training techniques and purpose-specific game genres.”
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Stephanidis, Constantine (ed.) Proceedings of the 12th International Conference on Human-Computer Interaction HCII 2007 2007, Beijing, China.
Stephanidis, Constantine (ed.) Proceedings of the 12th International Conference on Human-Computer Interaction 2007, Beijing, China.
Stephanidis, Constantine (ed.) UAHCI 2007 - 4th International Conference on Universal Access in Human-Computer Interaction - Part 1 July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human Computer Interaction. Coping with Diversity, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, Held as Part of HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, Part July 22-27, 2007, Beijing, China.
Antona, Margherita, Mourouzis, Alexandros and Stephanidis, Constantine (2007): Towards a Walkthrough Method for Universal Access Evaluation. In: Stephanidis, Constantine (ed.) UAHCI 2007 - 4th International Conference on Universal Access in Human-Computer Interaction - Part 1 July 22-27, 2007, Beijing, China. pp. 325-334. Available online
Stephanidis, Constantine (ed.) Universal Access in Human Computer Interaction. Coping with Diversity, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007, Held as Part of HCI International 2007, Beijing, China, July 22-27, 2007, Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China.
Stephanidis, Constantine, Antona, Margherita and Grammenos, Dimitris (2007): Universal Access Issues in an Ambient Intelligence Research Facility. In: Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Ambient Interaction, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part II July 22-27, 2007, Beijing, China. pp. 208-217. Available online
Grammenos, Dimitris, Savidis, Anthony and Stephanidis, Constantine (2007): Unified Design of Universally Accessible Games. In: Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China. pp. 607-616. Available online
Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Ambient Interaction, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part II July 22-27, 2007, Beijing, China.
Karouzaki, E., Savidis, Anthony, Katzourakis, A. and Stephanidis, Constantine (2007): Tile Dreamer : Game Tiles Made Easy. In: Stephanidis, Constantine (ed.) UAHCI 2007 - 4th International Conference on Universal Access in Human-Computer Interaction - Part 1 July 22-27, 2007, Beijing, China. pp. 382-391. Available online
Partarakis, Nikolaos, Mourouzis, Alexandros, Doulgeraki, Constantina and Stephanidis, Constantine (2007): A Portal-Based Tool for Developing, Delivering and Working with Guidelines. In: Stephanidis, Constantine (ed.) UAHCI 2007 - 4th International Conference on Universal Access in Human-Computer Interaction - Part 1 July 22-27, 2007, Beijing, China. pp. 507-516. Available online
Margetis, George, Ntoa, Stavroula, Bouhli, Maria and Stephanidis, Constantine (2007): An Accessible Platform for Conference Administration and Management. In: Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Applications and Services, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part July 22-27, 2007, Beijing, China. pp. 941-950. Available online
Mourouzis, Alexandros, Boutsakis, Evagelos, Ntoa, Stavroula, Antona, Margherita and Stephanidis, Constantine (2007): An Accessible and Usable Soft Keyboard. In: Stephanidis, Constantine (ed.) Universal Access in Human-Computer Interaction. Ambient Interaction, 4th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2007 Held as Part of HCI International 2007 Beijing, China, July 22-27, 2007 Proceedings, Part II July 22-27, 2007, Beijing, China. pp. 961-970. Available online
Stephanidis, Constantine (2007): Lecture Notes in Computer Science: Universal Access in Human-Computer Interaction. Applications and Services. Berlin, Springer
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» 2006 «
Savidis, Anthony and Stephanidis, Constantine (2006): Inclusive development: Software engineering requirements for universally accessible interactions. In Interacting with Computers, 18 (1) pp. 71-116
“The notion of 'universal access' reflects the concept of an Information Society in which potentially anyone (i.e. any user) will interact with computing machines, at anytime and anyplace (i.e. in any context of use) and for virtually anything (i.e. for any task). Towards reaching a successful and cost effective realization of this vision, it is critical to ensure that the future interface development tools provide all the necessary instrumentation to support inclusive design, i.e. facilitate inclusive development. In the meantime, it is crucial that both tool developers and interface developers acquire awareness regarding the key development features they should pursue when investigating for the most appropriate software engineering support in addressing such a largely demanding development goal (i.e. universally accessible interactions). This paper discusses a corpus of key development requirements for building universally accessible interactions that has been consolidated from real practice, in the course of six medium-to-large scale research projects, all completed, within a 10 years timeframe.”
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Grammenos, Dimitris, Mourouzis, Alexandros and Stephanidis, Constantine (2006): Virtual prints: Augmenting virtual environments with interactive personal marks. In International Journal of Human-Computer Studies, 64 (3) pp. 221-239
“This paper introduces the concept of Virtual Prints (ViPs) as an intuitive metaphor for supporting interaction and navigation, as well as a number of additional tasks in virtual environments (VEs). Three types of ViPs are described: Virtual Footprints, which are used for tracking user navigation (position, orientation and movement), Virtual Handprints, which are used for tracing user interaction with the VE, and Virtual Markers, which are 'special' marks (usually coupled with information) that can be created upon user request. In a VE, the ViPs concept is instantiated and supported through a software mechanism (the ViPs mechanism) that allows users to create, manage and interact with their personal ViPs, as well as other users' ViPs. The paper presents the background and related work upon which the suggested concept builds, as well as the distinctive properties that differentiate ViPs from other related efforts. An account of how users can interact with ViPs is provided and related issues and challenges are discussed along with techniques and methods for addressing them. The paper also describes the process followed towards defining and experimenting with the concept of ViPs by means of iterative design and evaluation of an interactive prototype. This process involved exploratory studies, as well as several inspections and formal tests with both experts and potential end-users, in order to assess the usefulness of the concept and identify possible shortcomings, and also to evaluate and improve the usability of the proposed designs and software prototypes. In general, the findings of the studies reinforce the initial hypothesis that ViPs are an intuitive and powerful concept, and show that the related software is easy to learn and use. Overall, the results of the studies support strong evidence that an appropriately designed and implemented, fully functional ViPs mechanism can significantly increase the usability of VEs.”
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Antona, Margherita, Savidis, Anthony and Stephanidis, Constantine (2006): A Process-Oriented Interactive Design Environment for Automatic User-Interface Adaptation. In International Journal of Human-Computer Interaction, 20 (2) pp. 79-116
“In the design of user interfaces that adapt automatically to end-users and usage contexts, designers should be prepared to cope with large design spaces; these spaces will be necessary to accommodate design constraints posed by the diversity in the target user population and the various contexts of use. Adaptation-oriented design is considered a powerful design recipe addressing the compelling requirements of customization, accessibility, and high quality of interaction. Under this perspective, it must be carefully planned, designed, accommodated, and conducted within the life cycle of interactive systems, from the early exploratory phases of design and prototyping to evaluation, implementation, and deployment. Despite recent progress, the practice of designing automatic user-interface adaptations remains difficult, due to intrinsic complexity of the task and the current limited expertise of designers and practitioners. Toward overcoming such a difficulty, this article presents MENTOR, a tool providing (a) practical integrated support for all phases of adaptation design, through appropriate editing facilities; (b) practical support for a "smooth transition" from design to development through the availability of automated verification mechanisms for the designed adaptation logic, as well as the automated generation of "ready-to-implement" interface specifications; and (c) support for the progressive accumulation of design cases and of the related design experience and knowledge, in particular regarding adaptation.”
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Savidis, Anthony, Grammenos, Dimitris and Stephanidis, Constantine (2006): Developing inclusive e-learning systems. In Universal Access in the Information Society, 5 (1) pp. 51-72
“The requirement for e-inclusion relates to the employment of appropriate development strategies for software applications and services so as to accomplish accessibility and increased interaction quality at deployment time. Inclusive e-learning is the outcome from the application of e-inclusion design and implementation methods in the context of e-learning systems. This paper reports consolidated development experience from the construction of the following e-learning systems: (a) training applications for hand-motor impaired users and for people with cognitive disabilities; (b) learner-adapted courseware and (c) a universally accessible educational computer game. In this context, the primary emphasis is placed on the reporting of the design and implementation aspects to accommodate the inclusive system characteristics, rather than on the typical e-learning software engineering approaches.”
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Klironomos, Iosif, Antona, Margherita, Basdekis, Ioannis and Stephanidis, Constantine (2006): White Paper: promoting Design for All and e-Accessibility in Europe. In Universal Access in the Information Society, 5 (1) pp. 105-119
“This White Paper results from the collaboration of Design for All (DfA) and e-Accessibility expert bodies representing the European Union member states [ref: the coordination centres of the national European Design for All e-Accessibility network (EDeAN) in 23 European Union Member States, in this document referred to as NCCs]. The objectives of this White Paper are threefold: (1) to present the current state of affairs of EDeAN, active since 2002 as part of the European Commission's action line supporting the development of the European Information Society; (2) to outline a roadmap for future initiatives, actively reflecting views of the EDeAN network in specific domains related to DfA, e-Accessibility and e-Inclusion; and (3) to bring forward a set of suggestions and recommendations regarding the activities of the network, aiming to support the creation of a fully inclusive European Information Society. The paper is organised as follows: Section 1 provides a short introduction to DfA and Accessibility in Information Society (IS) and Information Society Technology (IST) developments in Europe. Section 2 provides an overview of policy as well as R&D activities related to DfA and accessibility in IST in Europe. Section 3 briefly describes the role of EDeAN and the new challenges that emerge as a result of the changing European policy environment. Section 4 presents current challenges that emerge in five domains directly related to DfA and accessibility, such as policy and legislation, industry, monitoring and evaluation -- benchmarking, standardisation, R&D, and education and training. Finally, Sect. 5 puts forward a number of recommendations with regard to future activities for EDeAN. The contents of this paper reflect results from the open discussion forums supported in the EDeAN website (ref: EDeAN Special Interest Groups, SIGs). The draft paper was written by the EDeAN Secretariat for 2005, FORTH-ICS (Greece), and completed with the support of all NCCs. Support was also provided by the European Commission DG Information Society and Media and by the D4ALLnet project (ref: an EC funded project with the code IST-2001-38833).”
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Savidis, Anthony, Stamou, Apostolos and Stephanidis, Constantine (2006): An Accessible Multimodal Pong Game Space. In: Proceedings of the 9th ERCIM Workshop on User Interfaces for All 2006. pp. 405-418. Available online
“King Pong is an accessible remake of the classic Pong game, supporting a spatially localized audio environment and force feedback (transforming sound into haptic feedback). It may be played either by one player and the computer as opponent, or by two players. In the two-player mode, the opponents can share the same computer, or alternatively play the game over the network. King Pong also supports recording (logging) and playback of game play activities with time stamps for off-line analysis and evaluation. The game is fully configurable, regarding the auditory grid, the behavior of the force feedback, the graphical appearance and various sound effects. Moreover, different levels of difficulty are supported, affecting speed and the game arena (i.e., circular top-bottom sides). This paper reports the design methodology regarding the spatial auditory grid, as well as the use of force feedback, and discusses issues related to the game-play itself, such as the simulation of an artificial opponent.”
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Basdekis, Ioannis, Klironomos, Iosif, Antona, Margherita and Stephanidis, Constantine (2006): Online Communities for All: The Role of Design for All in the Formation and Support of Inclusive Online Communities. In: International Design for All Conference September 13-15, 2006, Rovaniemi, Finland. . Available online
“An online community is a virtual community composed of individuals who form and maintain online communication, share common goals, interests and needs that provide the reason of community existence, and use common interactive tools that support their networking and communication activities. The term “networking” is traditionally used to describe the formation and maintenance of connections and relationships between individuals, organizations or other interested parties. Virtual or online networking is a form of interpersonal communication that is characterized by the use of electronic means of communication between the different parties and the exchange of messages and information in electronic forms [11]. Hence, virtual or online communities perform virtual networking.
This paper aims to examine how the principles of Design for All can support the formation and operation of online communities that are fully inclusive, multi-cultural and multiplatform, thus providing an infrastructure essentially accessible to all their members to carry out virtual networking activities. Following an introduction to online communities and community formation, the paper briefly builds the case for Design for All and the challenges for new information and communication technologies towards a fully inclusive Information Society. Then, based on practical experience and case studies, the paper examines the benefits and challenges of applying the principles of Design for All in the design, development and support of virtual interaction spaces, in order to cater for the diversity of users-community members, as well as of their environments of use. The paper concludes by proposing a set of design issues to be taken into account in the development of online communities for all.”
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Grammenos, Dimitris, Savidis, Anthony, Georgalis, Yannis and Stephanidis, Constantine (2006): Access Invaders: Developing a Universally Accessible Action Game. In: Miesenberger, Klaus, Klaus, Joachim, Zagler, Wolfgang L. and Karshmer, Arthur I. (eds.) ICCHP 2006 - Computers Helping People with Special Needs, 10th International Conference July 11-13, 2006, Linz, Austria. pp. 388-395. Available online
Mourouzis, Alexandros, Antona, Margherita, Boutsakis, Evagelos and Stephanidis, Constantine (2006): A User-Orientation Evaluation Framework: Assessing Accessibility Throughout the User Experience Lifecycle. In: Miesenberger, Klaus, Klaus, Joachim, Zagler, Wolfgang L. and Karshmer, Arthur I. (eds.) ICCHP 2006 - Computers Helping People with Special Needs, 10th International Conference July 11-13, 2006, Linz, Austria. pp. 421-428. Available online
» 2005 «
Klironomos, Iosif, Basdekis, Ioannis, Kartakis, Georgios and Stephanidis, Constantine (2005): Facilitating virtual networking for Design for All in Europe: The HERMES platform. In: Proceedings of the e-2005 eChallenges Conference October 19-21, 2005, Ljubljana, Slovenia. pp. 1529-1536.
“This paper reports on HERMES, the virtual networking platform of the European Design for All eAccessibility Network (EDeAN) that was established in 2002 by the European Commission in order to stimulate European network activities within the area of Design for All, with particular focus on ICT and e-Accessibility. The paper reports on the development and utilisation of the networking platform developed to enable the cooperation of EDeAN members through an accessible interface over the World Wide Web. HERMES is available at http://www.edean.org”
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Basdekis, Ioannis, Alexandraki, Chrisoula, Mourouzis, Alex and Stephanidis, Constantine (2005): Incorporating Accessibility in Web-Based Work Environments: Two Alternative Approaches and Issues Involved. In: Volume 8 of the Proceedings of the 11th International Conference on Human-Computer Interaction July 22-27, 2005, Las Vegas, Nevada, USA. .
“The development of online work and collaboration environments presents a number of opportunities as well as challenges, especially for diverse user populations. They can enhance the mobility of workers and, subject to their design, offer access to people with disability and contribute significantly to tackling existing barriers in employment and social inclusion. At present, a number of web-based work environments have been developed; nonetheless, they hardly reach people with disability due to their low conformance with Web accessibility principles. One of the reasons why incorporating accessibility in online environments remains elusive for most Web service providers is that it is difficult for them to choose among the alternative approaches. This paper examines two different approaches of Web accessibility engineering from a provider’s perceptive and in relation to the resources required in each case. In the first approach, interfaces are made accessible by design, whereas the second approach involves the use of “filter and transformation tools” as a means to transform existing non-accessible interfaces into ones that comply with de facto Web accessibility recommendations. Based on the authors’ experience and hands-on practice on both approaches gained in the context of several European and national projects and through the development of fifteen accessible online tools in total, a study was conducted to examine the cost effectiveness of each approach. As a result, a set of practical guidelines are offered here for assisting web service providers in identifying the most appropriate approach with regards to the different needs of any given project.”
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Savidis, Anthony and Stephanidis, Constantine (2005): Distributed interface bits: dynamic dialogue composition from ambient computing resources. In Personal and Ubiquitous Computing, 9 (3) pp. 142-168
» 2004 «
Savidis, Anthony and Stephanidis, Constantine (2004): Unified user interface design: designing universally accessible interactions. In Interacting with Computers, 16 (2) pp. 243-270
“Designing universally accessible user interfaces means designing for diversity in end-users and contexts of use, and implies making alternative design decisions, at various levels of the interaction design, inherently leading to diversity in the final design outcomes. Towards this end, a design method leading to the construction of a single interface design instance is inappropriate, as it cannot accommodate for diversity of the resulting dialogue artifacts. Therefore, there is a need for a systematic process in which alternative design decisions for different design parameters may be supported. The outcome of such a design process realizes a design space populated with appropriate designed dialogue patterns, along with their associated design parameters (e.g. user- and usage-context-attribute values). This paper discusses the Unified Interface Design Method, a process-oriented design method enabling the organization of diversity-based design decisions around a single hierarchical structure, and encompassing a variety of techniques such as task analysis, abstract design, design polymorphism and design rationale.”
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Savidis, Anthony and Stephanidis, Constantine (2004): Unified user interface development: the software engineering of universally accessible interactions. In Universal Access in the Information Society, 3 (3) pp. 165-193
“In the information society, the notion of computing-platform encompasses, apart from traditional desktop computers, a wide range of devices, such as public-use terminals, phones, TVs, car consoles, and a variety of home appliances. Today, such computing platforms are mainly delivered with embedded operating systems (such as Windows CE, Embedded/ Personal Java, and Psion Symbian), while their operational capabilities and supplied services are controlled through software. The broad use of such computing platforms in everyday life puts virtually anyone in the position of using interactive software applications in order to carry out a variety of tasks in a variety of contexts of use. Therefore, traditional development processes, targeted towards the elusive average case, become clearly inappropriate for the purposes of addressing the new demands for user- and usage-context diversity and for ensuring accessible and high-quality interactions. This paper will introduce the concept of unified user interfaces, which constitutes our theoretical platform for universally accessible interactions, characterized by the capability to self-adapt at run-time, according to the requirements of the individual user and the particular context of use. Then, the unified user interface development process for constructing unified user interfaces will be described, elaborating on the interactive-software engineering strategy to accomplish the run-time self-adaptation behaviour.”
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Alexandraki, Chrisoula, Paramythis, Alex, Maou, Napoleon and Stephanidis, Constantine (2004): Web Accessibility through Adaptation. In: Klaus, Joachim, Miesenberger, Klaus, Zagler, Wolfgang L. and Burger, Dominique (eds.) ICCHP 2004 - Computers Helping People with Special Needs - 9th International Conference July 7-9, 2004, Paris, France. pp. 302-309. Available online
Bühler, Christian and Stephanidis, Constantine (2004): European Co-operation Activities Promoting Design for All in Information Society Technologies: Introduction to the Special Thematic Session. In: Klaus, Joachim, Miesenberger, Klaus, Zagler, Wolfgang L. and Burger, Dominique (eds.) ICCHP 2004 - Computers Helping People with Special Needs - 9th International Conference July 7-9, 2004, Paris, France. pp. 80-87. Available online
Ntoa, Stavroula, Savidis, Anthony and Stephanidis, Constantine (2004): FastScanner: An Accessibility Tool for Motor Impaired Users. In: Klaus, Joachim, Miesenberger, Klaus, Zagler, Wolfgang L. and Burger, Dominique (eds.) ICCHP 2004 - Computers Helping People with Special Needs - 9th International Conference July 7-9, 2004, Paris, France. pp. 796-803. Available online
» 2003 «
Akoumianakis, Demosthenes and Stephanidis, Constantine (2003): Blending scenarios of use and informal argumentation to facilitate universal access: experience with the Universal Access Assessment Workshop method. In Behaviour and Information Technology, 22 (4) pp. 227-244
“The accessibility of interactive computer-based products and services has long been an issue of concern to the Assistive Technology (AT) and Human-Computer Interaction (HCI) communities. In recent years, there have been several efforts aiming to document the consolidated wisdom in the form of general guidelines and examples of best practice. Despite their sound human factors content, these guidelines require substantial interpretation by designers, before they can generate practically useful and context-specific recommendations. In this paper, we examine how this task can be aided by blending scenarios of use and informal argumentation in the context of a structured technique referred to as Universal Access Assessment Workshop (UA{sup:2}W). The paper provides a review of the technique and proposes two instruments, namely scenario screening and growth scenarios, which can be used to structure the conduct of UA{sup:2}Ws. Finally, the paper summarises recent experiences in the use of these techniques in the context of a case study, which seeks to provide universal access insight to the design of a ward-based service to patient medical data.”
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Karampelas, P., Grammenos, D., Mourouzis, A. and Stephanidis, Constantine (2003): Towards i-dove, an interactive support tool for building and using virtual environments with guidelines. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 1411-1415.
Mourouzis, A., Grammenos, D., Filou, M., Papadakos, P. and Stephanidis, Constantine (2003): Virtual Prints: An Empowering Tool for Virtual Environments. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 1426-1430.
Savidis, Anthony and Stephanidis, Constantine (2003): Dynamic environment-adapted mobile interfaces: the Voyager Toolkit. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 489-493.
Emiliani, P. L., Paramythis, A., Burzagli, L. and Stephanidis, Constantine (2003): PALIO as an enabling platform for disabled and elderly people. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 547-551.
Paramythis, A., Alexandraki, C., Segkos, I., Maou, N. and Stephanidis, Constantine (2003): The PALIO Framework for Hypermedia Adaptations. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 587-591.
Zarikas, V. and Stephanidis, Constantine (2003): An Influence Diagrams-Based Approach to Location Aware Mobile Computing. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 657-664.
Akoumianakis, Demosthenes and Stephanidis, Constantine (2003): A Validated Code of Practice for Universal Access in Health Telematics. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 1063-1067.
Orphanoudakis, S., Tsiknakis, M., Anthoulakis, D. and Stephanidis, Constantine (2003): The Integrated Electronic Health Record: Accessibility, Usability and Security Issues. In: Proceedings of the Tenth International Conference on Human-Computer Interaction 2003. pp. 1168-1172.
Harris, Don, Duffy, V., Smith, Michael and Stephanidis, Constantine (eds.) 10th International Conference on Human Computer Interaction June 23-27, 2003, Crete, Greece.
Harris, Don, Duffy, V., Smith, Michael, Stephanidis, Constantine and Aspects, Human Centred Computing. Cognitive, Social and Ergonomic (eds.) 11th International Conference on Human Computer Interaction June 23-27, 2003, Crete, Greece.
Stephanidis, Constantine (ed.) Proceedings of HCI International 2003 June 22-27, 2003, Crete, Greece.
Harris, Don, Duffy, Vincent, Smith, Michael and Stephanidis, Constantine (eds.) Human-Centred Computing Cognitive, Social, and Ergonomic Aspects June 2003, 2003, Crete, Greece.
Stephanidis, Constantine (ed.) Proceedings of the Human-Computer Interaction – International Conference 2003.
» 2002 «
Carbonell, Noelle and Stephanidis, Constantine (eds.) Proceedings of the 7th ERCIM Workshop on User Interfaces for All October 23-25, 2002, Paris, France.
Akoumianakis, Demosthenes and Stephanidis, Constantine (2002): Scenario-Based Argumentation for Universal Access. In: Carbonell, Noelle and Stephanidis, Constantine (eds.) Proceedings of the 7th ERCIM Workshop on User Interfaces for All October 23-25, 2002, Paris, France. pp. 118-128.
“We present two analytical techniques, namely scenario screening and growth scenarios, for engineering universal access into interactive applications and services. The techniques are intended to bridge across design reflection and envisioning of new practices through use cases. They foster an exploratory approach to design, progressively leading to an understanding of the global execution context of tasks, thus towards universal access. In this paper, we elaborate on the rationale and basic concepts behind scenario screening and growth scenarios, and discuss their application in a small case study in the domain of Health Telematics.”
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Karampelas, P., Akoumianakis, Demosthenes and Stephanidis, Constantine (2002): User Interface Design for PDAs: Lessons and Experience with the WARD-IN-HAND Prototype. In: Carbonell, Noelle and Stephanidis, Constantine (eds.) Proceedings of the 7th ERCIM Workshop on User Interfaces for All October 23-25, 2002, Paris, France. pp. 474-485.
“This paper describes the process and outcomes of the evaluation of a user interface prototype running on a Personal Digital Assistant (PDA). The prototype was developed in the context of the IST-funded project WARD-IN-HAND and implements a PDA version of a ward information system. The evaluation, carried out by the IS4ALL project, was based on a usage scenario comprising mock-ups and textual descriptions of the typical tasks of the system. Although the evaluation revealed a range of usability issues to be addressed, in this paper we consider only those which feature prominent in the vast majority of PDA-based applications, such as adaptability, individualisation, user profiling, alternative dialogue styles, localisation, etc., and propose design solutions of general purpose, as a basis for improved design practice.”
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Stephanidis, Constantine and Akoumianakis, Demosthenes (2002): Towards a design code of practice for universal access in health telematics. In Universal Access in the Information Society, 1 (3) pp. 223-226
“This paper presents a brief overview of the European Commission funded Thematic Network (Working Group) "Information Society for All"-IS4ALL (IST-1999-14101). IS4ALL aims to establish a wide, interdisciplinary and closely collaborating network of experts to provide the European Health Telematics industry with a comprehensive code of practice on how to appropriate the benefits of universal design. This paper outlines the project's main objectives and technical approach in the context of universal access.”
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Savidis, Anthony, Maou, N., Pachoulakis, I. and Stephanidis, Constantine (2002): Continuity of interaction in nomadic interfaces through migration and dynamic utilization of I/O resources. In Universal Access in the Information Society, 1 (4) pp. 274-287
“The concept of ubiquitous computing reflects an infrastructure in which users are engaged in mobile interaction sessions within environments composed of dynamically varying computational resources. In this paradigm, applications are required to continuously follow end users and provide high-quality interaction while migrating among different computing devices and dynamically utilizing the available input/output (I/O) resources of each device. In the context of such interaction scenarios, the principle of continuity, which emphasizes the uninterrupted sequence of dialogue activities, is put forward as a key design goal. This paper presents an application experiment demonstrating interface migration, distributed I/O control, and dynamic I/O reconfiguration. The adopted dialogue design approach is discussed, along with the identified interaction design requirements, from the perspective of dialogue continuity. Finally, the employed software engineering strategy is presented, elaborating on the way dialogue mobility, distribution, and dynamic I/O control have been accomplished.”
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Stephanidis, Constantine (2002): The Disappearing Computer: Emerging Opportunities and Challenges for Disabled and Elderly People. In: Miesenberger, Klaus, Klaus, Joachim and Zagler, Wolfgang L. (eds.) ICCHP 2002 - Computers Helping People with Special Needs - 8th International Conference July 15-20, 2002, Linz, Austria. pp. 41-48. Available online
Stephanidis, Constantine and Emiliani, Pier Luigi (2002): Universal Access to Information Society Technologies: Opportunities for People with Disabilities - Introduction to the Special Thematic Session. In: Miesenberger, Klaus, Klaus, Joachim and Zagler, Wolfgang L. (eds.) ICCHP 2002 - Computers Helping People with Special Needs - 8th International Conference July 15-20, 2002, Linz, Austria. pp. 8-10. Available online
» 2001 «
Stephanidis, Constantine (ed.) (2001): User Interfaces for All: Concepts, Methods, and Tools. Lawrence Erlbaum Associates
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Weber, H. and Stephanidis, Constantine (2001): Enabling Universal Access--Minimum Requirements for Content Preparation. In: Proceedings of the Ninth International Conference on Human-Computer Interaction 2001. pp. 1390-1394.
Akoumianakis, Demosthenes and Stephanidis, Constantine (2001): Computational Environments for Organisational Learning. In: Proceedings of the Ninth International Conference on Human-Computer Interaction 2001. pp. 306-309.
Stephanidis, Constantine and Savidis, Anthony (2001): Universal Access in the Information Society: Methods, Tools, and Interaction Technologies. In Universal Access in the Information Society, 1 (1) pp. 40-55
“Accessibility and high quality of interaction with products, applications, and services by anyone, anywhere, and at any time are fundamental requirements for universal access in the emerging Information Society. This paper discusses these requirements, and their relation to the concept of automated adaptation of user interfaces. An example application is presented, showing how adaptation can be used to accommodate the requirements of different user categories and contexts of use. This application is then used as a vehicle for discussing a new engineering paradigm appropriate for the development of adaptation-based user interfaces. Finally, the paper investigates issues concerning the interaction technologies required for universal access.”
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Stephanidis, Constantine (2001): From User Interfaces for All to an Information Society for All: Challanges and Opportunities. In: Oberquelle, Horst, Oppermann, Reinhard and Krause, Jürgen (eds.) Mensch and Computer 2001 March 5-8, 2001, Bad Honnef, Germany. . Available online
Antona, Margherita, Savidis, Anthony and Stephanidis, Constantine (2001): Adaptation of interactive courseware. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 760-764.
Paramythis, Alex, Savidis, Anthony and Stephanidis, Constantine (2001): AVANTI: a universally accessible web browser. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 91-95.
Paramythis, Alex, Leidermann, Frank, Weber, Harald and Stephanidis, Constantine (2001): Continuity through user interface adaptation: a perspective on universal access. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 411-415.
Stephanidis, Constantine, Akoumianakis, Demosthenes and Savidis, Anthony (2001): Accessibility guidelines: current status and future prospects in standardization. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 622-626.
Zarikas, Vasilios, Paramythis, Alex and Stephanidis, Constantine (2001): Decision-theoretic approaches to user interface adaptation: implications on universal access. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 127-131.
Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA.
Akoumianakis, Demosthenes and Stephanidis, Constantine (2001): Re-thinking HCI in terms of universal design. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 8-12.
Stephanidis, Constantine (2001): IS4-8ALL: promoting universal design in Healthcare Telematics. In: Stephanidis, Constantine (ed.) HCI International 2001 - Proceedings of the 9th International Conference on Human-Computer Interaction August 5-10, 2001, New Orleans, USA. pp. 50-54.
» 2000 «
Grammenos, D., Akoumianakis, Demosthenes and Stephanidis, Constantine (2000): Integrated Support for Working with Guidelines: The Sherlock Guideline Management System. In Interacting with Computers, 12 (3) pp. 281-311
“For a number of years, the primary medium for propagating human factors input to interactive system development has been paper-based guideline reference manuals. However, in the recent past, a number of tools for working with guidelines have emerged to ease the tasks of: (i) accessing and retrieving guidelines, (ii) applying recommendations to design prototypes, and (iii) facilitating a more effective human factors input to the early stages of system development. This paper presents a new way for working with guidelines and discusses the functionality, properties, typical use and evaluation of a supporting tool environment, the Sherlock Guideline Management System. Sherlock builds upon and extends the results of previous efforts to address state of the art requirements and problems, as highlighted by recent practice and experience in the use of the current generation of guideline management systems. In particular, Sherlock provides an integrated environment for articulating and depositing guidelines, accessing past experience, propagating guidelines/recommendations to the user interface development life-cycle, and facilitating the automatic usability inspection of tentative design. Thus, Sherlock fosters persistency of organisational knowledge on guidelines and evolution of the accumulated design wisdom.”
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Akoumianakis, Demosthenes, Savidis, Anthony and Stephanidis, Constantine (2000): Encapsulating Intelligent Interactive Behaviour in Unified User Interface Artefacts. In Interacting with Computers, 12 (4) pp. 383-408
“Intelligence at the level of the user interface is currently being supported through a number of prevalent strands, including adaptive user interfaces, model-based user interface development and interface agents. Moreover, the term intelligent user interface typically implies the notion of dynamically enhancing the interaction with a single implemented artefact to suit different usage patterns, user groups, or contexts of use. This article extends this notion and describes how unified design artefacts can support the development of accessible and high quality user interfaces exhibiting the characteristics of multiple metaphor environments. To this effect, the article outlines the principles of unified user interface development and discusses how it can be used to advance Intelligent Interface Technology to account for diverse user requirements and interaction contexts.”
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Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy.
Emiliani, Pier Luigi and Stephanidis, Constantine (2000): From Adaptations to User Interfaces for All. In: Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy. p. 11. Available online
“This paper provides an overview of research efforts in the area of accessibility over the past decade in Europe, and follows the evolution of Research and Technological Development work from solutions based on 'a posteriori' adaptation to the notion of User Interfaces for All. The aim of the paper is to outline the beginning of an evolutionary path driving from reactive accessibility solutions to the requirement for Universal Access in the Information Society.”
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Stephanidis, Constantine (2000): From User interfaces for all to an Information Society for All: Recent Achievements and Future Challenges. In: Emiliani, Pier Luigi and Stephanidis, Constantine (eds.) Proceedings of the 6th ERCIM Workshop on User Interfaces for All October 25-26, 2000, Florence, Italy. p. 14. Available online
“User Interfaces for All has been defined as a systematic approach to the design, implementation and evaluation of user interfaces that cater for the requirements of the broadest possible user population. The scope of User Interfaces for All, as a perspective on HCI, is necessarily broad and complex, involving challenges, which pertain to issues such as context-oriented design, diverse user requirements and adaptable and adaptive interactive behaviors. This paper attempts to address a two-fold objective: first, to review the premises of User Interfaces for All and how they have been realised by recent technical accomplishments; secondly, to sketch a transition towards an Information Society for All, by pointing out some of the challenges involved, and how they are being addressed by on-going work.”
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» 1999 «
Stephanidis, Constantine and Salvendy, Gavriel (1999): Toward an Information Society for All: HCI Challenges and R&D Recommendations. In International Journal of Human-Computer Interaction, 11 (1) pp. 1-28
“This article reports on the results of the second meeting and workshop of the International Scientific Forum, "Towards an Information Society for All," that took place in Crete, Greece, June 15-16, 1998. In particular, it elaborates on the international research and development agenda (Stephanidis et al., 1998), which resulted from the first meeting and workshop of the Forum in San Francisco, California, on August 29, 1997, in the context of the HCI International '97 Conference. This article elaborates on the proposed re-earch and development agenda by identifying human-computer interaction chal-enges and clusters of concrete recommendations for international collaborative research and technological development (RTD) activities. Four clusters of recommendations are proposed. The first three facilitate reaching technological targets, and the fourth comprises accompanying measures. The three technological clusters concern the corresponding transitions from (a) productivity tools to environments of use, (b) individual users to communities of users, and (c) computer-assisted business tasks to computer-mediated human activities. The fourth cluster covers support (horizontal) actions needed to establish a favorable environment for the creation of an information society acceptable to all citizens. Each cluster is elaborated by means of specific recommendations, plausible RTD objectives, and likely or expected outcomes.”
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Kobsa, Alfred and Stephanidis, Constantine (eds.) Proceedings of the 5th ERCIM Workshop on User Interfaces for All November 28 - December 1, 1999, Dagstuhl, Germany.
Kobsa, Alfred and Stephanidis, Constantine (1999): "Foreword". In: Kobsa, Alfred and Stephanidis, Constantine (eds.) Proceedings of the 5th ERCIM Workshop on User Interfaces for All November 28 - December 1, 1999, Dagstuhl, Germany. p. 1. Available online
Stephanidis, Constantine and Akoumianakis, Demosthenes (1999): Accessibility Guidelines and Scope of Formative HCI Design Input: Contrasting Two Perspectives. In: Kobsa, Alfred and Stephanidis, Constantine (eds.) Proceedings of the 5th ERCIM Workshop on User Interfaces for All November 28 - December 1, 1999, Dagstuhl, Germany. p. 11. Available online
“The accessibility of interactive computer-based products and services has long been an issue of concern to both the Assistive Technology and HCI communities. Though progress has been slow, there have been several efforts aiming to document the consolidated wisdom in the form of general guidelines and examples of best practice. Despite their sound human factors content, these guidelines require substantial interpretation by designers before they can generate practically useful and context-specific recommendations. In this paper, we examine how different engineering perspectives in the implementation of guidelines may influence the quality of the final products.”
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Stephanidis, Constantine, Paramythis, Alexandros and Sfyrakis, Michael (1999): Evaluating Adaptable and Adaptive User Interfaces: Lessons Learned from the Development of the AVANTI Web Browser. In: Kobsa, Alfred and Stephanidis, Constantine (eds.) Proceedings of the 5th ERCIM Workshop on User Interfaces for All November 28 - December 1, 1999, Dagstuhl, Germany. p. 6. Available online
“One of the critical issues in the development of adaptable and adaptive user interfaces concerns the lack of appropriate evaluation methods and techniques. Existing approaches cannot be used to assess the way and extent to which the adaptation facilities of the interface affect interaction qualities such as accessibility and usability. This paper reports on the particular approach taken within the development of the AVANTI Web browser for the assessment of the adaptation characteristics of the user interface. Based on the practical experience gained, a number of requirements have emerged towards the development of generic methods and techniques for evaluating adaptation-capable user interfaces.”
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Savidis, Anthony, Akoumianakis, Demosthenes and Stephanidis, Constantine (1999): Unified user interfaces: from design to implementation. In: 1999. pp. 782-786.
Akoumianakis, Demosthenes, Sfyrakis, M., Paramythis, A. and Stephanidis, Constantine (1999): Universal accessibility: process-oriented design guidelines. In: 1999. pp. 807-811.
Paramythis, A., Sfyrakis, M., Savidis, Anthony and Stephanidis, Constantine (1999): Non-visual web browsing: lessons learned from the AVANTI case study. In: 1999. pp. 812-817.
Antona, M., Akoumianakis, Demosthenes and Stephanidis, Constantine (1999): A grammar-based approach for populating HCI design spaces. In: 1999. pp. 843-847.
Stephanidis, Constantine, Salvendy, Gavriel, Elimiliani, P. L. and Akoumianakis, Demosthenes (1999): Policy perspectives on "design for all". In: 1999. pp. 868-872.
Stephanidis, Constantine (1999): Universal access in the information society. In: 1999. pp. 913-917.
Grammenos, Dimitris, Akoumianakis, Demosthenes and Stephanidis, Constantine (1999): Support for Iterative User Interface Prototyping: The Sherlock Guideline Management System. In: Chatty, Stephane and Dewan, Prasun (eds.) Engineering for Human-Computer Interaction, IFIP TC2/TC13 WG2.7/WG13.4 Seventh Working Conference on Engineering for Human-Computer Interaction September 14-18, 1999, Heraklion, Crete, Greece. pp. 299-317.
Stephanidis, Constantine, Grammenos, Dimitris and Akoumianakis, Demosthenes (1999): Embedding HCI guideline input to iterative user interface development. In: Bullinger, Hans-Jörg (ed.) HCI International 1999 - Proceedings of the 8th International Conference on Human-Computer Interaction August 22-26, 1999, Munich, Germany. pp. 978-982.
Stephanidis, Constantine, Salvendy, Gavriel, Emiliani, Pier Luigi and Akoumianakis, Demosthenes (1999): Policy perspectives on "design for all. In: Bullinger, Hans-Jörg and Ziegler, Jürgen (eds.) HCI International 1999 - Proceedings of the 8th International Conference on Human-Computer Interaction - Volume 2 August 22-26, 1999, Munich, Germany. pp. 868-872.
» 1998 «
Stephanidis, Constantine and Salvendy, Gavriel (1998): Toward an Information Society for All: An International Research and Development Agenda. In International Journal of Human-Computer Interaction, 10 (2) pp. 107-134
“This article introduces the visionary goal of an information society for all, in which the principles of universal access and quality in use prevail and characterize computer-mediated human activities. The article is based on the outcome of the 1st meeting of the International Scientific Forum "Toward an Information Society for All," which took place during the Seventh International Conference on Human Computer Interaction (HCI International '97). The objective of this meeting was to define a short-, medium-, and long-term international research and development agenda in the context of the emerging information society, based on the principle of designing for all users. The proposed agenda addressed technological and user-oriented issues, application domains, and support measures, which are necessary for the establishment of a favorable environment for the creation of an information society acceptable to all citizens.”
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Karagiannidis, Charalampos, Koumpis, Adamantios, Stephanidis, Constantine and Georgiou, Andreas C. (1998): Employing Queuing Modeling in Intelligent Multimedia User Interfaces. In International Journal of Human-Computer Interaction, 10 (4) pp. 297-326
“This article investigates the application of queuing modeling in intelligent multimedia user interfaces (IMUIs). We propose that queuing modeling constitutes an effective means for providing, at runtime, assessment information concerning user-computer interaction (UCI) and can thus contribute to runtime adaptation. We present specific queuing systems that model the load posed to the user's sensory channels in IMUIs under different assumptions, and indicative (media-and-modalities allocation) adaptation policies that build on this modeling are exemplified. This article also outlines the implementation of an assessment software module that uses the proposed queuing modeling framework and its subsequent integration into an existing IMUI (in which it is used for the assignment of information to output modalities); both activities were undertaken to practically demonstrate that queuing modeling can be effectively used in IMUIs.”
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Savidis, Anthony and Stephanidis, Constantine (1998): The HOMER UIMS for Dual User Interface Development: Fusing Visual and Non-Visual Interactions. In Interacting with Computers, 11 (2) pp. 173-209
“Existing systems which enable accessibility to graphical user interfaces (GUIs) by blind people follow an 'adaptation strategy'; each system adopts its own hard-coded policy for reproducing visual dialogues in a non-visual form, without knowledge about the application domain or the particular dialogue characteristics. It is argued that non-visual user interfaces should be more than automatically generated adaptations of visual dialogues. Tools are required to facilitate purposeful non-visual interface construction, allowing iterative design and implementation. Such tools should cater for the construction of 'integrated' user interfaces, which are concurrently accessible by sighted and blind users. Thus, the concept of dual user interfaces is introduced, arguably as the most appropriate basis to address this important issue of concurrent accessibility, in order to prevent segregation of blind people in computer-based working environments. A user interface management system (UIMS) has been developed, called HOMER, which facilitates the development of dual user interfaces. HOMER supports the integration of visual and non-visual toolkits of interaction elements; a non-visual toolkit, called COMONKIT, has been also implemented for building non-visual user interfaces, and has been incorporated in HOMER.”
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Stephanidis, Constantine and Waern, Annika (eds.) Proceedings of the 4th ERCIM Workshop on User Interfaces for All October 19-21, 1998, Stockholm, Sweden.
Stephanidis, Constantine and Waern, Annika (1998): "Foreword". In: Stephanidis, Constantine and Waern, Annika (eds.) Proceedings of the 4th ERCIM Workshop on User Interfaces for All October 19-21, 1998, Stockholm, Sweden. p. 1. Available online
Stephanidis, Constantine, Paramythis, Alexandros, Akoumianakis, Demosthenes and Sfyrakis, Michael (1998): Self-Adapting Web-based Systems: Towards Universal Accessibility. In: Stephanidis, Constantine and Waern, Annika (eds.) Proceedings of the 4th ERCIM Workshop on User Interfaces for All October 19-21, 1998, Stockholm, Sweden. p. 17. Available online
“This paper discusses the employment of self-adaptation techniques in WWW-based interactive systems, as a tool for ensuring their universal accessibility. The paper first elaborates on the underpinnings of universal accessibility and their relevance to Web applications and services. Then it provides a contextual definition of self-adapting systems and an account of how self-adaptation relates to accessibility. Subsequently, different adaptation approaches that may be employed on the Web are presented, as well as their potential correlation to accessibility solutions. Finally, the application of some of the proposed approaches in the development of Web-based information systems is presented.”
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Stephanidis, Constantine, Akoumianakis, Demosthenes, Sfyrakis, Michael and Paramythis, Alexandros (1998): Universal Accessibility in HCI: Process-Oriented Design Guidelines and Tool Requirements. In: Stephanidis, Constantine and Waern, Annika (eds.) Proceedings of the 4th ERCIM Workshop on User Interfaces for All October 19-21, 1998, Stockholm, Sweden. p. 15. Available online
“This paper presents a preliminary collection of design-oriented guidelines and development requirements for accessibility and universal design in HCI. The process-oriented guidelines aim to shed light into how a user-centred design process can be conducted, so as to account for the needs and requirements of the broadest possible end user population, including people with disabilities. These guidelines are subsequently translated into key development requirements which should be preserved in user interface development tools in order for them to provide the required support for building user interface software for different users and contexts of use. To this effect, we provide contextual definitions of key terms of reference and an account of related standards. The proposed material does not intend to cover a particular technology. Instead, it aims to formulate a conceptual framework whereby accessibility becomes an integral component of the user interface development life-cycle.”
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Emiliani, Pier Luigi and Stephanidis, Constantine (1998): Focusing on an International R&D Agenda for Universal Accessibility: Reflections from the 2nd ISF workshop. In: Stephanidis, Constantine and Waern, Annika (eds.) Proceedings of the 4th ERCIM Workshop on User Interfaces for All October 19-21, 1998, Stockholm, Sweden. p. 7. Available online
“This position paper reviews and provides a consolidated account of the results of the second workshop of the International Scientific Forum "Towards an Information Society for All" that took place in Heraklion, Crete, Greece on June 15-16, 1998. Specifically, it examines the developed recommendations for further R&D work, in the light of recent developments and initiatives related to universal access to today's and tomorrow's applications and services.”
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» 1997 «
Stephanidis, Constantine and Akoumianakis, Demosthenes (1997): Preference-Based Human Factors Knowledge Repository for Designing User Interfaces. In International Journal of Human-Computer Interaction, 9 (3) pp. 283-318
“This article proposes and describes a representational framework and a supporting tool environment for embedding and propagating human factors expertise into high-level user interface design and development platforms. The proposed framework allows user interface designers to elicit, accommodate, and articulate user interface guidelines and results of experimental studies into reusable, evolutionary, and "living" design cases. The building blocks of the representational framework are a set of primitive constructs for consolidating the semantics of human factors knowledge into a design representation that characterizes the physical level of interaction. This is achieved through the development of a logical framework based on preference constraints and an initial set of preference and indifference expressions. The preference constraints provide a reasoning engine and a proof strategy for compiling a preference ordering of competing design alternatives and subsequently aggregating them into indifferent classes of design options per interaction element. The article also reports the implications of the proposed technique for user interface designers and the underlying requirements of user interface development platforms. Finally, the representational sufficiency of the proposed approach is discussed in the context of recent case studies aiming to consolidate human factors knowledge into a reusable repository supporting the ergonomic design of user interfaces in two example application domains, namely nonvisual hypermedia accessible to blind people and interpersonal communication aids for speech-motor-impaired and language-cognitive-impaired users.”
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Stephanidis, Constantine and Carbonell, Noelle (1997): "Foreword". In: Stephanidis, Constantine and Carbonell, Noelle (eds.) Proceedings of the 3rd ERCIM Workshop on User Interfaces for All 1997. p. 1. Available online
Akoumianakis, Demosthenes and Stephanidis, Constantine (1997): Supporting User-Adapted Interface Design: The USE-IT System. In Interacting with Computers, 9 (1) pp. 73-104
“This paper describes USE-IT, a knowledge-based tool for automating the design of interactions at the physical level, so as to ensure accessibility of the target user interface by different user groups, including people with disabilities. To achieve this, USE-IT elicits, manipulates and interprets representations of design knowledge in order to reason about, select and decide upon lexical adaptation constituents of a user interface. Adaptation constituents are attributes of abstract interaction object classes. USE-IT generates a collection of adaptation rules (i.e. a lexical specification scenario), based on design constraints generated from three basic knowledge sources: (a) the user model, (b) the task schema, and (c) a set of platform constraints (i.e. interaction objects, attributes, device availability, etc.). A data structure called the adaptability model tree has been designed to (i) facilitate the development of plausible semantics of adaptation at the lexical level of interaction, (ii) allow unification of design constraints, and (iii) enable selection of maximally preferred design options. The output of USE-IT can be subsequently interpreted by the run-time libraries of a high-level user interface development toolkit, which provides the required implementation support for realizing the user-adapted interface on a target platform.”
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Stephanidis, Constantine, Karagiannidis, Charalampos and Koumpis, Adamantios (1997): Decision Making in Intelligent User Interfaces. In: Moore, Johanna D., Edmonds, Ernest and Puerta, Angel R. (eds.) International Conference on Intelligent User Interfaces 1997 January 6-9, 1997, Orlando, Florida, USA. pp. 195-202. Available online
“Intelligent user interfaces are characterised by their capability to adapt at run-time and make several communication decisions concerning 'what', 'when', 'why' and 'how' to communicate, through a certain adaptation strategy. In this paper, we present a methodological approach to assist this decision making process, which is based on a clear separation of the important attributes that characterise the adaptation strategy, namely the adaptation determinants, constituents, goals and rules. Based on this separation, we also present a methodological approach for the formulation of adaptation rules, which utilises techniques from the domain of multiple criteria decision making. It is argued that, following the proposed approach, the adaptation strategy can be easily customised to the requirements of different application domains and user groups, and can be re-used with minor modifications in different applications. As a result, developers of intelligent user interfaces can be significantly assisted, and users can be empowered to exploit the benefits of intelligent interfaces.”
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Savidis, Anthony, Paramythis, A., Akoumianakis, Demosthenes and Stephanidis, Constantine (1997): Designing User-Adapted Interfaces: The Unified Design Method for Transformable Interactions. In: Proceedings of DIS97: Designing Interactive Systems: Processes, Practices, Methods, & Techniques 1997. pp. 323-334. Available online
“In the interface design process, diverse user requirements and characteristics lead to alternative dialogue patterns. User-adapted interfaces, capable of self-adapting to individual end-user requirements, should encompass alternative dialogue components into a single implementation form. The process of designing user-adapted interactive applications necessarily engages the manipulation of alternative design artifacts, while for the implementation process a single design is needed, as opposed to alternative design versions. The unified design method is targeted towards the organization of alternative design artifacts into a single representation structure. Relationships among alternative artifacts in user-adapted design, such as exclusion, compatibility, augmentation and substitution, need to be explicitly represented.”
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Stephanidis, Constantine, Savidis, Anthony and Paramythis, A. (1997): Addressing Cultural Diversity Through Unified Interface Development. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 165-168.
Savidis, Anthony, Vernardos, G. and Stephanidis, Constantine (1997): Embedding Scanning Techniques Accessible to Motor-Impaired Users in the WINDOWS Object Library. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 429-432.
Akoumianakis, Demosthenes, Stephanidis, Constantine and Salvendy, Gavriel (1997): Interface Design for Disabled People: Eliciting User-Centred Design Constraints. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 437-440.
Savidis, Anthony, Akoumianakis, Demosthenes and Stephanidis, Constantine (1997): Software Architecture for Transformable Interface Implementations: Building User-Adapted Interactions. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 453-456.
Savidis, Anthony and Stephanidis, Constantine (1997): Unifying and Merging Toolkits: A Multi-Purpose Toolkit Integration Engine. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 457-460.
Savidis, Anthony and Stephanidis, Constantine (1997): Agent Classes for Managing Dialogue Control Specification Complexity: A Declarative Language Framework. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 461-464.
Savidis, Anthony, Stephanidis, Constantine and Emiliani, P. L. (1997): Abstract Task Definition and Incremental Polymorphic Physical Instantiation: The Unified Interface Design Method. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 465-468.
Stephanidis, Constantine, Akoumianakis, Demosthenes, Ziegler, Jürgen and Faehnrich, K. P. (1997): User Interface Accessibility: A Retrospective of Current Standardisation Efforts. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 469-472.
Stephanidis, Constantine (1997): Towards the Next Generation of UIST: Developing for all Users. In: Proceedings of the Seventh International Conference on Human-Computer Interaction 1997. pp. 473-476.
Stephanidis, Constantine and Carbonell, Noelle (eds.) Proceedings of the 3rd ERCIM Workshop on User Interfaces for All 1997.
Savidis, Anthony, Stephanidis, Constantine and Akoumianakis, Demosthenes (1997): Unifying toolkit programming layers: a multi-purpose toolkit integration module. In: Harrison, Michael D. and Torres, Juan Carlos (eds.) DSV-IS 1997 - Design, Specification and Verification of Interactive Systems97, Proceedings of the Fourth International Eurographics Workshop June 4-6, 1997, Granada, Spain. pp. 177-192.
» 1996 «
Stephanidis, Constantine (ed.) Proceedings of the 2nd ERCIM Workshop on User Interfaces for All November 7-8, 1996, Prague, Czech Republic.
Savidis, Anthony and Stephanidis, Constantine (1996): Agents Classes for Managing Dialogue Control Specification Complexity. In: Stephanidis, Constantine (ed.) Proceedings of the 2nd ERCIM Workshop on User Interfaces for All November 7-8, 1996, Prague, Czech Republic. p. 10. Available online
“The organization of interface implementation software by means of agents is an elegant model for managing the interface construction complexity. Agents have their own local control, may manage arbitrary collections of interaction objects, and may communicate with, control, or affect other agents. The explicit realization of the agent model in dialogue specification languages is currently restricted. The I-GET interface specification language (for the I-GET UIMS) encompasses specification facilities directly reflecting the software agent model; these facilities and some key implementation issues will be presented and discussed. The agent-based specification kernel of the I-GET language provides a framework that could be combined with various other interface specification languages.”
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Savidis, Anthony and Stephanidis, Constantine (1996): PIM: a Tool for Building Programming Layers on Top of Toolkits. In: Stephanidis, Constantine (ed.) Proceedings of the 2nd ERCIM Workshop on User Interfaces for All November 7-8, 1996, Prague, Czech Republic. p. 11. Available online
“Learning to program with interface toolkits requires a considerable amount of time. Due to the fact that existing toolkits provide radically different programming layers, programmers familiar with one particular toolkit require additional training before they can effectively use another toolkit. Virtual toolkits have contributed positively in this context, by providing the same programming layer for a fixed number of target toolkits. However, users of virtual toolkits are not enabled: (i) to locally incorporate a new toolkit, or (ii) to extend or modify the supplied programming layer (e.g. adding new interaction facilities, changing naming conventions and programming structure of interaction elements). A tool has been developed, called PIM, through which interface developers may establish the desired programming layers on top of toolkits, such as virtual toolkits, with reduced development effort. The PIM tool provides: (a) a language for the specification of the desired programming layers for toolkits, (b) a compiler to translate such a specification to a C++ software library (i.e. generated programming layer), and (c) an asynchronous communication library, called generic toolkit interfacing protocol, for "connecting" the generated programming layer with the original target toolkit; such a connection should be realized through the implementation of a toolkit server module (one toolkit server implementation is needed for each programming layer to be built).”
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Stephanidis, Constantine and Akoumianakis, Demosthenes (1996): Interaction in an ERCIM Virtual Laboratory. In: Stephanidis, Constantine (ed.) Proceedings of the 2nd ERCIM Workshop on User Interfaces for All November 7-8, 1996, Prague, Czech Republic. p. 2. Available online
“The proposed work is concerned with the following developments. First of all, co-operative interface toolkits embodying properties from selected real world metaphors will be developed to facilitate the construction of the multiple metaphor environment. Possible real world metaphors to be examined include the document metaphor, the book metaphor, the card note, the desktop, the rooms metaphor, the television metaphor, the telephone metaphor. Secondly, unified interface specification techniques will be developed for co-operative dialogue processing in the multiple metaphor environment. Thirdly, a metaphor design environment including selection of real world objects and corresponding attributes, as well as mapping to interaction components with suitable look and feel and dynamic behaviour. Fourthly, a methodology will be developed for designing interaction metaphors and embedding them to user interface development and implementation. Finally, on the application site, some of the applications to be developed include a shared file management system for ERCIM papers and documents, point-to-point video conferencing and the ERCIMlab guided tour for visitors.”
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Stephanidis, Constantine and Akoumianakis, Demosthenes (1996): ERCIM Collaborative Interaction Design Toolset. In: Stephanidis, Constantine (ed.) Proceedings of the 2nd ERCIM Workshop on User Interfaces for All November 7-8, 1996, Prague, Czech Republic. p. 5. Available online
“This position paper aims to present a proposal for collaborative long term research amongst ERCIM members in the context of the current ESPRIT Call on Intelligent Information Interfaces (I{sup:3}). The paper outlines work proposed to be carried out in the context of the Connected Community Schema of ESPRIT Intelligent Information Interfaces initiative. The proposed work is primarily concerned with the way in which a specific community (such as for example the user interface design community within ERCIM as well as other corporate organisational or institutional working communities) may progressively and incrementally consolidate accumulated wisdom into reusable, sharable and expandable knowledge repositories. As an example, we provide a tentative scenario of such a community emphasising core activities, the issues to be addressed and the benefits to be obtained through suitable technology.”
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Savidis, Anthony, Stephanidis, Constantine, Korte, Andreas, Crispien, Kai and Fellbaum, Klaus (1996): A Generic Direct-Manipulation 3D-Auditory Environment for Hierarchical Navigation in Non-Visual Interaction. In: Second Annual ACM Conference on Assistive Technologies 1996. pp. 117-123. Available online
“Auditory presentation methods may significantly enhance the interaction quality during user-computer dialogue. The impact of auditory interaction methods is important in the context of non-visual interaction, where audio is the primary direct perception output modality. In a few cases, 3D-audio output techniques have been employed for providing interaction for blind users. Unfortunately, such developments have been too specialized and do not support re-usability of the implemented approaches and techniques in different contexts, where non-visual interaction needs to be realized. A generic re-usable environment has been implemented, based on 3D audio, 3D pointing, hand gestures and voice input, which is applicable in all cases that interactive hierarchically structured selections from sets of alternatives must be handled. This environment has been used to implement the hierarchical navigation dialogue in a multimedia non-visual toolkit currently under development. It is composed of a set of modules implementing re-usable functionality with which interaction for non-visual hierarchical navigation can be realized within any non-visual interaction toolkit.”
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Akoumianakis, Demosthenes, Savidis, Anthony and Stephanidis, Constantine (1996): Design Assistance for User-Adapted Interaction. In: Bodart, Francois and Vanderdonckt, Jean M. (eds.) DSV-IS 1996 - Design, Specification and Verification of Interactive Systems96, Proceedings of the Third International Eurographics Workshop June 5-7, 1996, Namur, Belgium. pp. 248-271.
» 1995 «
Savidis, Anthony and Stephanidis, Constantine (1995): Developing Dual Interfaces for Integrating Blind and Sighted Users: The HOMER UIMS. In: Katz, Irvin R., Mack, Robert L., Marks, Linn, Rosson, Mary Beth and Nielsen, Jakob (eds.) Proceedings of the ACM CHI 95 Human Factors in Computing Systems Conference May 7-11, 1995, Denver, Colorado. pp. 106-113. Available online
“Existing systems which enable the accessibility of Graphical User Interfaces to blind people follow an "adaptation strategy"; each system adopts its own fixed policy for reproducing visual dialogues to a non-visual form, without knowledge about the application domain or particular dialogue characteristics. It is argued that non-visual User Interfaces should be more than automatically generated adaptations of visual dialogues. Tools are required to facilitate non-visual interface construction, which should allow iterative design and implementation (not supported by adaptation methods). There is a need for "integrated" User Interfaces which are concurrently accessible by both sighted and blind users in order to prevent segregation of blind people in their working environment. The concept of Dual User Interfaces is introduced as the most appropriate basis to address this issue. A User Interface Management System has been developed, called HOMER, which facilitates the development of Dual User Interfaces. HOMER supports the integration of visual and non-visual lexical technologies. In this context, a simple toolkit has been also implemented for building non-visual User Interfaces and has been incorporated in the HOMER system.”
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Stephanidis, Constantine (ed.) Proceedings of the 1st ERCIM Workshop on User Interfaces for All October 30-31, 1995, Heraklion, Crete, Greece.
Stephanidis, Constantine (1995): Editorial. In: Stephanidis, Constantine (ed.) Proceedings of the 1st ERCIM Workshop on User Interfaces for All October 30-31, 1995, Heraklion, Crete, Greece. p. 4. Available online
Stephanidis, Constantine, Akoumianakis, Demosthenes and Savidis, Anthony (1995): Design Representations and Development Support for User Interface Adaptation. In: Stephanidis, Constantine (ed.) Proceedings of the 1st ERCIM Workshop on User Interfaces for All October 30-31, 1995, Heraklion, Crete, Greece. p. 23. Available online
“With the advent of Graphical User Interfaces (GUIs) and the advances of input/output technologies, there has been a shift of perspective, from user interface programming tools to environments for designing interaction. This is partly attributed to technological maturity and partly due to the increasing requirement to support a need-driven and user-centered protocol for design, development and implementation of interactive systems. This paper investigates the architectural shortcomings of existing user interface development systems and environments with respect to supporting adaptation of a user interface and discusses methods, techniques and tools that are needed to empower user interface designers. In particular, the paper describes a high level architecture comprising user interface software components that can provide the required design, development and implementation support that is needed to facilitate user interfaces for different user groups with diverse requirements abilities and preferences.”
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Karagiannidis, Charalampos, Koumpis, Adamantios and Stephanidis, Constantine (1995): Supporting Adaptivity in Intelligent User Interfaces: The Case of Media and Modalities Allocation. In: Stephanidis, Constantine (ed.) Proceedings of the 1st ERCIM Workshop on User Interfaces for All October 30-31, 1995, Heraklion, Crete, Greece. p. 15. Available online
“Adaptivity is widely recognised as a major characteristic of Intelligent User Interfaces for improving the usability of interactive systems, in order to meet the requirements of heterogeneous user categories. The process through which adaptivity takes place is characterised by several attributes. In this paper, we are concerned with adaptivity constituents, determinants, goals and rules, and identify the requirements that the adaptivity process has to meet, with respect to these attributes. We propose a methodology which addresses the adaptivity at the media and modalities level, and complies with these requirements. We also present the implications of the methodology for users and user interface developers. It is argued that the provision of methodologies and tools that comply with the identified requirements may significantly assist the design and development of intelligent user interfaces, and substantially promote the 'design for all' principle.”
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Stephanidis, Constantine, Akoumianakis, Demosthenes and Grammenos, D. (1995): Query Assistance: The Query Interface of the CORE Shell System. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 717-722.
“This paper presents the user interface of the CORE shell system and reports on the effort to build a Query Interface Assistant (QIA) to a formal database query language such as SQL. The CORE shell system addresses the domain of Assistive Technology and aims to provide a useful tool for information seeking actors who may not be particularly aware of the organisation or structure of data residing on existing information sources. To this end, a cooperative QIA to the SQL formal database query language has been developed, which guides the user's query formulation, both conceptually and syntactically. At present, a prototypical implementation of the QIA is used to provide access to a selected number of databases, which hold data relevant to the Assistive Technology domain.”
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Akoumianakis, Demosthenes and Stephanidis, Constantine (1995): User Modelling for Adaptable Interface Design. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 1071-1076.
“A prototype user modelling module (UMM) has been designed and implemented which supports the automatic derivation of lexical level user interface adaptability rules. UMM is part of a new high level user interface development environment, currently under development, which facilitates the construction of unified interaces for interactive applications, accessible by different user groups, including people with disabilities. UMM supports the acquisition and storage of information about target users and produces a set of rules for adapting the user interface at the lexical level; this comes as a result of a three-phase process, namely reasoning about, selection of, and decision on the optimal interaction techniques and devices.”
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Stephanidis, Constantine and Gogoulou, R. (1995): Tailoring Non-Visual Interaction in a Graphical Environment. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 39-44.
“The provision of alternative, non-visual interaction techniques is necessary in order to enhance non-visual interaction possibilities in a graphical environment, and fulfil the needs and preferences of blind users. This paper addresses issues related to the non-visual reproduction of a graphical environment and describes a dialogue configuration system (CONFIG) for tailoring non-visual interaction on the basis of individual blind user's needs and preferences, through 'easy-to-use' interactive facilities.”
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Stephanidis, Constantine, Karagiannidis, C. and Koumpis, A. (1995): Scenario Based Specification of Interaction Metaphors. In: Proceedings of the Sixth International Conference on Human-Computer Interaction July 9-14, 1995, Tokyo, Japan. pp. 497-502.
“A scenario-based formal specification of interaction metaphors is proposed, which assists designers to develop interaction dialogues at a high-level of abstraction. A formalism has been developed which provides means for describing both application and metaphor semantics, as well as a descriptive model for the specification of interaction scenarios. The proposed approach has been applied for the construction of application scenarios in the domain of special education (i.e. supporting students with learning difficulties), so that different user interaction requirements and cognitive abilities are addressed.”
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Stephanidis, Constantine and Mitsopoulos, Y. (1995): INTERACT: An Interface Builder Facilitating Access to Users with Disabilities. In: Proceedings of the Sixth International Conference on Human-Computer Interaction 1995. pp. 923-928.
“This paper describes INTERACT, a tool for the specification of interaction dialogues and the construction of user interfaces appropriate for various categories of users, including people with disabilities. INTERACT builds on the notion of separating an application in two functional components, namely the application functional core and the user interface component, thus allowing the provision of multiple user interfaces and supporting the "high-level" design of the interaction dialogue, i.e. independently from the presentation details and operational constraints of a particular technological platform.”
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Savidis, Anthony and Stephanidis, Constantine (1995): Supporting Blind and Sighted User Collaboration through Dual User Interfaces Using the HOMER System. In: Proceedings of the Sixth International Conference on Human-Computer Interaction 1995. pp. 929-934.
“The emergence of Graphical User Interfaces has introduced additional problems regarding the accessibility of computer systems by blind people. The implications include restricted opportunities for computer-based collaboration between blind and sighted users in a working environment. Currently, accessibility to graphical User Interfaces by blind users is enabled through systems which reproduce the lexical structure of User Interfaces (i.e. interaction objects and their relationships) in a non-visual form; such systems introduce visually oriented concepts in the context of non-visual interaction. The concept of Dual User Interfaces has been defined as a more efficient and effective approach to address the accessibility and collaboration problems. A User Interface Management System, called HOMER, has been developed for the construction of Dual User Interfaces.”
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» 1994 «
Stephanidis, Constantine and Carbonell, Noelle (eds.) Proceedings of the 3rd ERCIM Workshop on User Interfaces for All November 3-4, 1994, Obernai, France.
Stephanidis, Constantine, Paramythis, Alexandros, Karagiannidis, Charalampos and Savidis, Anthony (1994): Supporting Interface Adaptation: the AVANTI Web Browser. In: Stephanidis, Constantine and Carbonell, Noelle (eds.) Proceedings of the 3rd ERCIM Workshop on User Interfaces for All November 3-4, 1994, Obernai, France. p. 14. Available online
“The increasing use of Internet and the World Wide Web as a primary medium for communication and access to information is creating numerous opportunities and challenges for the population at large and especially for people with disabilities. The importance of supporting information exchange between all potential users in the context of the emerging Information Society has, therefore, increased significantly. This paper focuses on the employment of user interface adaptation techniques, for the provision of accessibility and high-quality interaction to Web-based applications and services to able-bodied, blind and motor-impaired users. The work reported has been conducted in the context of the ACTS AC042 AVANTI project of the European Commission.”
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Savidis, Anthony and Stephanidis, Constantine (1994): Unified Manipulation of Interaction Objects: Integration, Augmentation, Expansion and Abstraction. In: Stephanidis, Constantine and Carbonell, Noelle (eds.) Proceedings of the 3rd ERCIM Workshop on User Interfaces for All November 3-4, 1994, Obernai, France. p. 15. Available online
“Interface developers combine interaction elements in order to implement the User Interface of interactive software applications, using the development facilities available by a given development tool. The functional capabilities of the interface tool may significantly affect the quality of the resulting interactive software product, as well as the resources needed for further maintenance, upgrade, porting and expansion. Interaction objects play a key role in interface tools, irrespective of the nature of the interface construction technique (e.g. graphical construction, programming language, declarative specification, task notation). We have identified four fundamental categories of mechanisms for manipulating interaction objects in interface tools. Their merits in the context of interface development tools are identified, particularly in the context of developments for diverse user groups and openness for different interaction technologies. We will also show that these two functional requirements play a key role towards meeting the objectives of User Interfaces for All.”
