Publication statistics
Pub. period:1990-1993
Pub. count:5
Number of co-authors:4
Co-authors
Number of publications with 3 favourite co-authors:
Jurgen Herczeg:4Matthias Ressel:4Thomas Schwab:1 Productive colleagues
Hubertus Hohl's 3 most productive colleagues in number of publications:
Jurgen Herczeg:7Matthias Ressel:6Thomas Schwab:4 
Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives.
-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")
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Hubertus Hohl
Publications by Hubertus Hohl (bibliography)
Herczeg, Jurgen, Hohl, Hubertus and Ressel, Matthias (1993): A New Approach to Visual Programming in User Interface Design. In: Proceedings of the Fifth International Conference on Human-Computer Interaction 1993. pp. 74-79.
To face prevailing problems with existing tools for interactively building graphical user interfaces we present a new object-oriented approach to implementing visual programming tools. This approach is employed by the user interface development environment XIT. It is based on the representation of knowledge for creating and manipulating interaction objects in the underlying user interface toolkit. This knowledge forms the basis for a set of higher-level tools, including interface builders, inspectors, browsers, and tracers, which may be applied to user interfaces created by either visual or conventional programming.
© All rights reserved Herczeg et al. and/or Elsevier Science
Ressel, Matthias, Hohl, Hubertus and Herczeg, Jurgen (1993): An Eventful Approach to Multi-Media, Multi-User Applications. In: Proceedings of the Fifth International Conference on Human-Computer Interaction 1993. pp. 428-433.
Existing software development tools and user interface toolkits assist application programmers in developing and implementing single-user applications with graphical user interface. However, multi-media and multi-user applications introduce new dimensions, like temporal aspects, concurrency, or sharing of objects, that are usually not supported by these tools. In this paper we describe the experience we made as we developed and implemented a distributed multi-user application in the domain of hyper-media document production. We describe the chosen event-based approach and how it makes it easier to augment existing software in order to support cooperative work as well as new kinds of temporal media.
© All rights reserved Ressel et al. and/or Elsevier Science
Hohl, Hubertus, Herczeg, Jurgen and Ressel, Matthias (1993): An Interactive Design Environment for Graphical Browsers. In: Proceedings of the Fifth International Conference on Human-Computer Interaction 1993. pp. 585-590.
Browsing, viewed as an integral approach to exploring and directly manipulating large and complex information spaces, crucially depends on adequate graphical presentation and interaction techniques to support navigation. Going beyond available user interface development environments, which are poor in representing and graphically presenting application-specific information structures, we describe an integrated approach to developing domain-specific browsing tools. A set of extensible and reusable construction kits for browsing form an application-independent framework that provides powerful mechanisms for representing, presenting, and accessing complex information structures. This framework is integrated within a browser design environment which offers higher-level tools for building or modifying domain-specific browsers interactively. These tools are designed to be used by both application developers and end users, i.e. domain experts, to adapt and tailor browsers according to a particular application domain or to specific user needs.
© All rights reserved Hohl et al. and/or Elsevier Science
Herczeg, Jurgen, Hohl, Hubertus and Ressel, Matthias (1992): Progress in Building User Interface Toolkits: The World According to XIT. In: Mackinlay, Jock D. and Green, Mark (eds.) Proceedings of the 5th annual ACM symposium on User interface software and technology November 15 - 18, 1992, Monteray, California, United States. pp. 181-190.
User interface toolkits and higher-level tools built on top of them play an ever increasing part in developing graphical user interfaces. This paper describes the XIT system, a user interface development tool for the X Window System, based on Common Lisp, comprising user interface toolkits as well as high-level interactive tools organized into a layered architecture. We especially focus on the object-oriented design of the lower-level toolkits and show how advanced features for describing automatic screen layout, visual feedback, application links, complex interaction, and dialog control, usually not included in traditional user interface toolkits, are integrated.
© All rights reserved Herczeg et al. and/or ACM Press
Bocker, Heinz-Dieter, Hohl, Hubertus and Schwab, Thomas (1990): {Upsi}{pi}ADAPT{epsi}{rho} -- Individualizing Hypertext. In: Diaper, Dan, Gilmore, David J., Cockton, Gilbert and Shackel, Brian (eds.) INTERACT 90 - 3rd IFIP International Conference on Human-Computer Interaction August 27-31, 1990, Cambridge, UK. pp. 931-936.
{Upsi}{pi}ADAPT{epsi}{rho} is an adaptive Hypertext system that offers individualized access to and presentations of tutorial information. Depending on the user's current knowledge state which is represented in a dynamic user model, it identifies and suggests nodes of the network of tutorial topics which may serve as starting points for a succeeding browsing session. Within this browser, the presentation of tutorial information is determined by the data contained in the user model. During the browsing session, the sequence of knowledge units explored by the user is analyzed to infer the user's current knowledge state and maintain the user model.
© All rights reserved Bocker et al. and/or North-Holland
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