Publication statistics

Pub. period:1992-2013
Pub. count:69
Number of co-authors:57



Co-authors

Number of publications with 3 favourite co-authors:

June M. Verner:15
Rodger Jamieson:7
June Verner:7

 

 

Productive colleagues

Narciso Cerpa's 3 most productive colleagues in number of publications:

June M. Verner:20
Rodger Jamieson:9
John Shepherd:8
 
 
 

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Narciso Cerpa

PhD, MCom, BEng

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Personal Homepage:
dcc.utalca.cl/index.php?option=com_content&view=article&id=61&Itemid=58&lang=es


Current place of employment:
Universidad de Talca

Narciso Cerpa ( ncerpa@utalca.cl ) is an Associate Professor in the Computer Science Department of the Faculty of Engineering at the “Universidad de Talca”, Chile. He has qualifications in computing engineering (BE) and information systems (MCom, PhD). He has 15 years of experience in the software development industry and 18 years of experience in academia and has held appointments in both Australia and Chile. He was Deputy Vice-Chancellor of Development and Innovation at the University of Talca during the period 2003-2006. His research interests include software engineering, and electronic commerce. He is the Editor-in-Chief of the Journal of Theoretical and Applied Electronic Commerce Research and one of its founding members. He is a member of the Editorial Review Board of the Journal of Global Information Management (JGIM), member of the Editorial Board of International Journal of Information Systems in the Service Sector (IJISSS), and member of the Scientific Editorial Board of the Revista de Universidad y Sociedad del Conocimiento. He is also a member of the IFIP Working Groups 6.11 (Electronic Commerce - Communication Systems) and 8.4 (E-Business Information Systems: Multi-disciplinary research and practice), and the Director of CollECTeR (Collaborative Electronic Commerce Technology and Research) Iberoamerica (2003-2008).

 

Publications by Narciso Cerpa (bibliography)

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2013
 
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Vasquez, Daniel, Cerpa, Narciso and Angles, Renzo (2013): A secure discussion system with anonymous participation through Web services. In Ingeniare. Rev. chil. ing., 21 (1) pp. 82-98. Available online

A challenge for democratic deliberation in a computing environment is to provide security in the process, both for the individual citizen and the social group. In this regard, it is important to provide guarantees of protection to the citizens so as not to affect their freedom of expression and security on the exchange of messages, so they are reliable for all participants. As part of this project a discussion system has been designed and built that allows users to exchange opinions safely, through the application of cryptographic techniques. The system allows multiple levels of security and identification. It allows the participation identified through the use of digital signatures and certificates. Furthermore, it implements a scheme of anonymous participation by signing messages using credentials obtained from a blind signature process. Also security attributes are applied to ensure to ensure the integrity, confidentiality and non-repudiation of these. The discussion system was built embedded in a Web services platform designed to provide functionality to support digital democracy.

© All rights reserved Vasquez et al. and/or Universidad de Tarapacá

2012
 
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Wilkin, Carla and Cerpa, Narciso (2012): Strategic Information Systems Planning: An Empirical Evaluation of its Dimensions. In Journal of Technology Management And Innovation, 7 (2) pp. 52-62.

2011
 
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Reyes, Francisco, Cerpa, Narciso, Candia, Alfredo and Bardeen, Matthew (2011): The optimization of success probability for software projects using genetic algorithms. In Journal of Systems and Software, 84 (5) pp. 775-785.

The software development process is usually affected by many risk factors that may cause the loss of control and failure, thus which need to be identified and mitigated by project managers. Software development companies are currently improving their process by adopting internationally accepted practices, with the aim of avoiding risks and demonstrating the quality of their work. This paper aims to develop a method to identify which risk factors are more influential in determining project outcome. This method must also propose a cost effective investment of project resources to improve the probability of project success. To achieve these aims, we use the probability of success relative to cost to calculate the efficiency of the probable project outcome. The definition of efficiency used in this paper was proposed by researchers in the field of education. We then use this efficiency as the fitness function in an optimization technique based on genetic algorithms. This method maximizes the success probability output of a prediction model relative to cost. The optimization method was tested with several software risk prediction models that have been developed based on the literature and using data from a survey which collected information from inhouse and outsourced software development projects in the Chilean software industry. These models predict the probability of success of a project based on the activities undertaken by the project manager and development team. The results show that the proposed method is very useful to identify those activities needing greater allocation of resources, and which of these will have a higher impact on the projects success probability. Therefore using the measure of efficiency has allowed a modular approach to identify those activities in software development on which to focus the project's limited resources to improve its probability of success. The genetic algorithm and the measure of efficiency presented in this paper permit model independence, in both prediction of success and cost evaluation.

© All rights reserved Reyes et al. and/or Elsevier

 
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Salinas, Erick, Cerpa, Narciso and Rojas, Pablo (2011): A Service Oriented Architecture for the Implementation of the Personal Software Process. In Ingeniare Revista Chilena de Ingeniería, 19 (1) pp. 40-52. Available online

This work describes a service oriented architecture of a software application that facilitates the implementation of the Personal Software Process by a development team or an organization. Some of the characteristics of this software and which are important to mention are extensibility and technical environment independence. These characteristics facilitate the process of adding new tools to the software development process integrating them to the Personal Software Process independently of the operating systems and programming languages being used. The implemented software undertakes the data collection necessary to the Personal Software Process almost automatically, since the administrator must only classify the errors that may occur when a particular programming language is used, among other small tasks. This ease of use approach helps to make the implementation of the Personal Software Process a success, requiring a low effort by the software development team members.

© All rights reserved Salinas et al. and/or Universidad de Tarapacá

 
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Salinas, Erick, Cerpa, Narciso and Rojas, Pablo (2011): Arquitectura orientada a srvicios para software de apoyo para el proceso personal de software. In Ingeniare, 19 (1) pp. 40-52.

2010
 
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Verner, June, Beecham, Sarah and Cerpa, Narciso (2010): Stakeholder Dissonance: Disagreements on project outcome and its impact on team motivation across three countries. In: ACM SIGMIS-CPR10 May 20-22, 2010, Vancouver, Canada. pp. 25-33.

When a project perceived to be a failure by one set of stakeholders is perceived as a success by another set of stakeholders we have outcome disagreement. Our objective is to discover if team motivation is affected when developers and managers disagree on a project's outcome. We also investigate if culture influences team motivation. We collected questionnaire data on 290 completed projects from software engineering practitioners based in Australia, Chile, and USA. We asked if the respondent considered their project was successful and if higher level management considered the project a success. We found that more projects were perceived successful by management than by developers. Also, successful projects are associated with higher levels of team motivation than failed projects or projects with outcome disagreement. Culture makes a difference to levels of team motivation for both failed projects, and projects with outcome disagreement. An over-riding influence on team motivation is agreement with other stakeholders. To motivate practitioners, stakeholders need to agree on what constitutes a successful or a failed project before the start of the project.

© All rights reserved Verner et al. and/or ACM Press

 
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Cerpa, Narciso, Bardeen, Matthew, Kitchenham, Barbara and Verner, June (2010): Evaluating Logistic Regression Models to Estimate Software Project Outcomes. In Information and Software Technology, 52 (9) pp. 934-944.

Context: Software has been developed since the 1960s but the success rate of software development projects is still low. During the development of software, the probability of success is affected by various practices or aspects. To date, it is not clear which of these aspects are more important in influencing project outcome. Objective: In this research, we identify aspects which could influence project success, build prediction models based on the aspects using data collected from multiple companies, and then test their performance on data from a single organization. Method: A survey-based empirical investigation was used to examine variables and factors that contribute to project outcome. Variables that were highly correlated to project success were selected and the set of variables was reduced to three factors by using principal components analysis. A logistic regression model was built for both the set of variables and the set of factors, using heterogeneous data collected from two different countries and a variety of organizations. We tested these models by using a homogeneous hold-out dataset from one organization. We used the receiver operating characteristic (ROC) analysis to compare the performance of the variable and factor-based models when applied to the homogeneous dataset. Results: We found that using raw variables or factors in the logistic regression models did not make any significant difference in predictive capability. The prediction accuracy of these models is more balanced when the cut-off is set to the ratio of success to failures in the datasets used to build the models. We found that the raw variable and factor-based models predict significantly better than random chance. Conclusion: We conclude that an organization wishing to estimate whether a project will succeed or fail may use a model created from heterogeneous data derived from multiple organizations.

© All rights reserved Cerpa et al. and/or Elsevier

2009
 
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Cerpa, Narciso and Verner, June (2009): Why Did Your Project Fail?. In Communications of the ACM, 52 (12) pp. 130-134. Available online

We have been developing software since the 1960s but still have not learned enough to ensure that our software development projects are successful. Boehm2 suggested that realistic schedule and budgets together with a continuing steam of requirements changes are high risk factors. The Standish Group in 1994 noted that approximately 31% of corporate software development projects were cancelled before completion and 53% were challenged and cost 180% above their original estimate.13 Glass discussed 16 project disasters.5 He found that the failed projects he reviewed were mostly huge and that the failure factors were not just management factors but also included technical factors. Linberg in 1999 found that 20% of software projects failed, and that 46% experienced cost and schedule overruns or significantly reduced functionality.8 Later, Glass revisited failed projects and found that poor estimation was high on his list of failure factors.

© All rights reserved Cerpa and Verner and/or ACM Press

 
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Schmal, Rodolfo, Ruiz-Tagle, Andrés and Cerpa, Narciso (2009): Una Experiencia docente de vinculación Universidad-Empresa. In: Congreso Chileno de Educación en Ingeniería Octubre 7-9, 2009, Concepción, Chile. .

 
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Verner, June, Sampson, Jennifer, Cerpa, Narciso and Bleistein, Steve (2009): What factors lead to software project failure and whose fault was it?. In Revue des sciences et technologies de l'information - Ingenierie des Systemes d'Information, 14 (4) pp. 55-75. Available online

2008
 
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Pereira, Javier, Cerpa, Narciso, Verner, June, Rivas, Mario and Procaccino, Drew (2008): What Do Software Practitioners Really Think About Project Success: A Cross-Cultural Comparison. In Journal of Systems and Software, 81 (6) pp. 897-907.

Due to the increasing globalization of software development we are interested to discover if there exist significant cultural differences in practitioners' definition of a successful software project. This study presents the results of a survey in which Chilean software practitioners' perceptions of project success are compared with previous research with US practitioners. Responses from both groups of practitioners indicate that there is a relationship between team-work and success; our results also indicate that there are similar perceptions related to the importance of job satisfaction and project success. However, Chilean responses suggest that if a practitioner is allowed too much freedom within the work environment, job stress results; this in turn is reflected in increasing demands for both job satisfaction and good environmental conditions. This may indicate the potential for the attribution of failure to conditions outside the team, thus preventing a search for problematic team issues and technical problems. In contrast, the data suggests peer control inside the US teams indicating a less stressful environment.

© All rights reserved Pereira et al. and/or Elsevier

 
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Verner, June M., Sampson, Jennifer and Cerpa, Narciso (2008): What factors lead to software project failure?. In: Second International Conference on Research Challenges in Information Science June 3-6, 2008, Marrakech, Morocco. pp. 85-93.

 
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Arias, Francisco and Cerpa, Narciso (2008): Extending The E-Scarf Model For Fraud Detection On Electronic Commerce Systems. In Ingeniare. Revista chilena de ingeniería, 16 (2) pp. 282-294. Available online

2007
 
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Verner, June M., Evanco, William M. and Cerpa, Narciso (2007): State of the practice: how important is effort estimation to software development success?. In Information and Software Technology, 49 (2) pp. 181-193.

During discussions with a group of U.S. software developers we explored the effect of schedule estimation practices and their implications for software project success. Our objective is not only to explore the direct effects of cost and schedule estimation on the perceived success or failure of a software development project, but also to quantitatively examine a host of factors surrounding the estimation issue that may impinge on project outcomes. We later asked our initial group of practitioners to respond to a questionnaire that covered some important cost and schedule estimation topics. Then, in order to determine if the results are generalizable, two other groups from the US and Australia, completed the questionnaire. Based on these convenience samples, we conducted exploratory statistical analyses to identify determinants of project success and used logistic regression to predict project success for the entire sample, as well as for each of the groups separately. From the developer point of view, our overall results suggest that success is more likely if the project manager is involved in schedule negotiations, adequate requirements information is available when the estimates are made, initial effort estimates are good, take staff leave into account, and staff are not added late to meet an aggressive schedule. For these organizations we found that developer input to the estimates did not improve the chances of project success or improve the estimates. We then used the logistic regression results from each single group to predict project success for the other two remaining groups combined. The results show that there is a reasonable degree of generalizability among the different groups.

© All rights reserved Verner et al. and/or Elsevier

 
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Cerpa, Narciso, Ruiz-Tagle, Andrés, Cabrera, Carolina, Hadweh, Pamela and Vergara, Fabián (2007): Evaluation Of The Internet Adoption Level In Chilean Universities Based On The Emica Model. In Ingeniare. Revista chilena de ingeniería,, 15 (3) pp. 270-282.

The main objective of this study is to investigate the degree of Internet technologies adoption in by chilean universities. These universities use the Web as a promotion system and for the coordination of their operational activities, highlighting the role of this technology in the effective communication between the different social actors that interact with the university, namely, enterprises, institutions, people and potential students. This Web-based platform plays also an important role in daily communication among administrative staff, faculty, and students. This study analyses all the chilean universities' websites, applying the Extended Model of Internet Commerce Adoption (eMICA) [3]. The results from this study show that in general, the universities make a wide use of Internet technologies, which allows most of these institutions (98.3%), to do their promotion and also provide information with a high degree of sophistication and interactivity (stage 2, level 3 of the eMICA model). A large percentage (75%) of the Chilean universities show a high degree of Internet technologies adoption, since they have application systems (administrative, academic, promotional, etc.), that support the execution of transactions via the Web, therefore, they are in the highest stage of the eMICA model, transaction processing.

© All rights reserved Cerpa et al. and/or their publisher

 
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Cerpa, Narciso, Pereira, Javier and Verner, June (2007): A Practitioner Experiment in Understanding Software Process Improvement Using Systems Modular Analysis. In Lecture Notes in Computer Science, 4764 pp. 82-93.

Software process improvement (SPI) models can be difficult to understand, principally because they lack visual representations relating concepts to text. Some models do not provide guidelines to help us understand their properties: i.e., their modular structure, the control-regulation configuration of common features in a key process area, and the arrangement of key process areas at each level. We propose Systems Modular Analysis (SMA) as a graphical modelling approach to facilitate understanding of SPI models. Using SMA, we reveal the internal structure of a key process area (KPA) in CMMSW as a non-redundant configuration of common features. When the Level 2 KPAs of CMM-SW are modelled using SMA, a normative structure which shows a modular and recursive arrangement of process areas is obtained. We conduct an experiment to show how SMA helps in understanding CMM-SW. We conclude that SMA significantly improves understanding of the properties and structure of CMM-SW Level 2.

© All rights reserved Cerpa et al. and/or Springer

 
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Verner, June M., Kitchenham, Barbara and Cerpa, Narciso (2007): Estimating project outcomes. In: Proceedings of the 20th International Conference on Software & Systems Engineering and their Applications December 4-6, 2007, Paris, France. .

 
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Cerpa, Narciso (2007): Becoming a Referee. In JTAER, 2 (1) . Available online

 
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Cerpa, Narciso (2007): Notes. In JTAER, 2 (3) . Available online

2006
 
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Plana, Cristián, Cerpa, Narciso and Bro, Per Bjarne (2006): An Electronic Commerce Adoption Methodology. In Rev. Fac. Ing. - Univ. Tarapacá, 14 (1) pp. 49-63.

This study proposes a methodology for adopting e-Commerce in the Chilean small and medium enterprises (SME). This methodology includes the essential steps required to adapt the organization to e-commerce, with strategic components for the first stages, and functional and operational steps in the later stages for the successful implementation of the methodology in the SMEs. This methodology was validated through case studies undertaken in two SMEs that have implemented e- Commerce, and have faced the typical problems presented with the adoption of this technology.

© All rights reserved Plana et al. and/or Universidad de Tarapacá

 
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Vergara, Fabián, Cerpa, Narciso, Loyola, Rodrigo and Bro, Per Bjarne (2006): Evaluation of the Effectiveness of Internet Banking in Chile for the Generation of Web-Based Banking Bussiness Strategies. In Ingeniare. Revista chilena de ingeniería, 14 (3) pp. 187-202.

The main objective of this study is to analyze the effectiveness of the services of Internet banking provided by thirteen Chilean banking institutions. To achieve this objective, two stages were considered. The first stage corresponded to the evaluation of the functionalities offered by the banking Web sites, using an adaptation of the Hersey Web site evaluation model. The second stage corresponded to the evaluation of the services according to the clients' perceptions. In order to determine the functionalities offered by banking Web sites it was necessary to detect the presence or absence of thirty seven elements. This approach permitted to rank the Chilean banking sector based on the Internet offer of each institution. On the other hand, the survey applied to non-users as well as users of Internet banking, allowed us to find a variety of factors that encourage or inhibit the use of the banking services. Although there are some aspects in which the Chilean banking industry has an average performance, in general, it is highly effective. In addition, good productivity in the global context becomes evident when observing the similarity between the results in Chile and those of the New Zealand's banking institutions.

© All rights reserved Vergara et al. and/or Universidad de Tarapacá

 
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Verner, June M., Bleistein, Steven J., Cerpa, Narciso and Cox, Karl A. (2006): Requirements Practices: A Comparative Industrial Survey. In: Nilsson, A., Gustas, R., Wojtkowski, W., Wojtkowski, W. G., Wrycza, S. and Zupancic, J. (eds.). "Advances in Information Systems Development: Bridging the Gap Between Academia and Industry, Vol. 2". New York: Springerpp. 719-730

 
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Cerpa, Narciso (2006): Welcome. In JTAER, 1 (1) . Available online

 
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Cerpa, Narciso (2006): Notes. In JTAER, 1 (3) . Available online

2005
 
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Verner, June, Cox, Karl A., Bleistein, Steven J. and Cerpa, Narciso (2005): Requirements Engineering and Software Project Success: An Industrial Survey in Australia and the U.S.. In Australasian Journal of Information Systems, 13 (1) pp. 225-238.

Because requirements engineering is recognized as critical to successful software projects we surveyed a number of software practitioners regarding their software development practices during recent software projects. Relationships between requirements practices and software project outcomes enable us to better understand requirements issues and their relationship with project success. We asked three sets of questions directly related to requirements issues: 1) requirements practices, 2) the sponsor and customers/users, and 3) project management. Our respondents were from business organizations in the U.S. and Australia, and were almost exclusively involved in in-house software development. The most significant factors from each question set were: 1) the requirements were good, 2) there was a high level of Customer/User involvement, and 3) the requirements were managed effectively. Overall, the best predictor of project success was that the requirements were good together with the requirements were managed effectively (93% of projects were predicted correctly). Our survey shows that effective project management is fundamental to effective requirements engineering.

© All rights reserved Verner et al. and/or University of Wollongong

 
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Burgess, Lois, Cooper, Joan, Cerpa, Narciso and Sargent, Jason (2005): A comparative analysis of the use of the web for destination marketing by regional tourism organisations in Chile and the Asia Pacific. In: Proceedings of the 2005 CollECTeR Conference July 13, 2005, Sydney, Australia. .

 
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Burgess, Lois, Cerpa, Narciso, Cooper, Joan and Sargent, Jason (2005): To what extent are Chilean Regional Tourism Organisations (RTOs) leveraging web technologies to promote regional tourism. In: Proceedings of Collaborative Electronic Commerce Technology and Research CollECTeR LatAm October 3-5, 2005, Talca, Chile. .

 
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Verner, June M., Cox, Karl A., Bleistein, Steven J. and Cerpa, Narciso (2005): What requirements engineering practices are useful for predicting software project success?. In: al, Benediktssson et (ed.) Proceedings of the 3rd SWDC-REK International Conference on Software Development May 27-June 1, 2005, Reykjavik, Iceland. pp. 117-128.

 
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Verner, June M. and Cerpa, Narciso (2005): Australian Software Development: What Software Project Management Practices Lead to Success?. In: Strooper, Paul (ed.) IEEE Proceedings of ASWEC March 29-31, 2005, Brisbane, Australia. pp. 70-77.

2004
 
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Pereira, Javier, Cerpa, Narciso and Rivas, Mario (2004): Risk factors in software development projects: Analysis of the Chilean software industry. In: 1st Experimental Software Engineering Latin American Workshop October, 2004, Brasilia, Brazil. .

 
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Plana, Cristián, Cerpa, Narciso and Bro, Per Bjarne (2004): eCommerce Adoption Methodology for Chilean SME's. In: Proceedings of Collaborative Electronic Commerce Technology and Research CollECTeR LatAm Octubre, 2004, Santiago, Chile. .

 
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Pereira, Javier, Cerpa, Narciso and Rivas, Mario (2004): Factores de éxito en proyectos de desarrollo de software: análisis de la industria chilena del software. In: Workshop de Ingeniería de Software November, 2004, Arica, Chile. .

 
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Vergara, Fabián, Cerpa, Narciso and Bro, Per Bjarne (2004): Adaptation of the Hersey web site evaluation model for application to the banking sites Evaluation Criteria. In: Proceedings of the Australasian Conference on Information Systems 2004, Hobart, Australia. .

2003
 
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Englemeier, K., Pereira, J. and Cerpa, Narciso (2003): A learning companion - design of personal assistance in an adaptive information and learning ambience. In: Stephanidis, Constantine (ed.) Proceedings of the Tenth International Conference on Human-Computer Interaction June 22-27, 2003, Crete, Greece. pp. 684-688.

 
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Pereira, Javier and Cerpa, Narciso (2003): Using the System Modular Analysis Approach to Represent the Level 2 of the CMM-SW. In: Proceedings of the 7th World Multiconference on Systemics, Cybernetics, and Informatics 2003, Orlando, USA. .

 
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Bro, Per Bjarne, Cerpa, Narciso and Ortega-Farias, Samuel (2003): Real Time Wíreless E-Commerce for Agricultural and Forestry Operations. In: Proceedings of the Sixteen Bled Electronic Commerce Conference June 9-11, 2003, Bled, Slovenia. .

 
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Cerpa, Narciso (2003): Mapping Object-Oriented Model into a Relational Model. In: (ed.). "Encyclopedia of Library and Information Science (Second Edition)". pp. 1770-1777

 
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Cerpa, Narciso and Bro, Per Bjarne (eds.) CollECTeR LatAm - Building Society Through E-Commerce: e-Government, e-Business and e-Learning September 29-October 1, 2003, Santiago, Chile.

2002
 
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Lopez, Jorge, Cerpa, Narciso and Farran, Yussef (2002): An e-Educational Platform for Teaching-Learning Process that are Difficult to Visualize. In: Monteiro, J. L., Swatman, Paula M. C. and Tavares, Luis Valadares (eds.). "Towards the Knowledge Society: eCommerce, eBusiness and eGovernment". London, England,: Kluwer Academic Publisherspp. 335-348

 
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Baird, A., Jamieson, Rodger and Cerpa, Narciso (2002): Development of a Framework for Risks and Security in B2C E-Business. In: Monteiro, J. L., Swatman, Paula M. C. and Tavares, Luis Valadares (eds.). "Towards the Knowledge Society: eCommerce, eBusiness and eGovernment". London, England,: Kluwer Academic Publisherspp. 383-398

2001
 
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Cerpa, Narciso and Otoya, Sergio (2001): Comparing Estimated with Actual Efforts for a Dynamic Methodology used by a Small Software Company. In: Proceedings of the 5th World Multi-conference on Systemics, Cybernetics, and Informatics Conference July 22-25, 2001, Orlando, USA. .

 
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Pak, B., Tsang, S., Cerpa, Narciso and Jamieson, Rodger (2001): A Tool for Designing Multimedia Systems. In: Proceedings of the 5th World Multi-conference on Systems, Cybernetics, and Informatics Conference July 22-25, 2001, Orlando, USA. .

 
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Jamieson, Rodger and Cerpa, Narciso (2001): A Research Framework for Risk, Security, Trust and Assurance within an Electronic Commerce Domain. In: Proceedings of the Oceania CACS Conference, Information Systems Audit and Control Association September 23-26, 2001, Canberra, Australia. .

 
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Chauhan, A. and Cerpa, Narciso (2001): A Comparison of Procurement Models for B2B Electronic Commerce. In: OPTIMA Conference October 10-12, 2001, Curicó, Chile. .

 
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Lai, K. and Cerpa, Narciso (2001): Support vs Confidence in Association Rule Algorithms. In: OPTIMA Conference October 10-12, 2001, Curicó, Chile. .

 
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Walczak, Steven and Cerpa, Narciso (2001): An Introduction to Artificial Neural Nets: Guidelines for Design. In: Meyers, R. A. (ed.). "Encyclopedia of Physical Sciences and Technology (3rd Edition), Volume 1". Academic Presspp. 631-645

 
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Cerpa, Narciso and Jamieson, Rodger (2001): A Security, Trust and Assurance Research Framework for Electronic Commerce. In: IFIP TC8 Working Conference on E-Commerce/E-Business June 22-23, 2001, Salzburg, Austria. .

 
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Lek, M., Anandarajah, B., Cerpa, Narciso and Jamieson, Rodger (2001): Data Mining Prototype for Detecting E-Commerce Fraud. In: Proceedings of the European Conference in Information Systems June 27-29, 2001, Bled, Slovenia. .

 
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Rao, V., Cerpa, Narciso and Jamieson, Rodger (2001): A Comparison of Online Electronic Commerce Assurance Service Providers in Australia. In: Proceedings of the Fourteen Bled Electronic Commerce Conference June 24-26, 2001, Bled, Slovenia. .

2000
 
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Cerpa, Narciso and Sweller, John (2000): Applying Computational Models to Measure Relative Cognitive Load”. In: Proceedings of the 4th World Multi-conference on Systemics, Cybernetics and Informatics July 23-26, 2000, Orlando, USA. .

 
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Wong, Keith, Ng, Brenda, Cerpa, Narciso and Jamieson, Rodger (2000): An Online Audit Review System for Electronic Commerce. In: Proceedings of the Thirteen Bled Electronic Commerce Conference June 19-21, 2000, Bled, Slovenia. .

1999
 
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Walczak, Steven and Cerpa, Narciso (1999): Heuristic Principles for the Design of Artificial Neural Networks. In Information and Software Technology, 41 (2) pp. 107-117.

Artificial neural networks were used to support applications across a variety of business and scientific disciplines during the past years. Artificial neural network applications are frequently viewed as black boxes which mystically determine complex patterns in data. Contrary to this popular view, neural network designers typically perform extensive knowledge engineering and incorporate a significant amount of domain knowledge into artificial neural networks. This paper details heuristics that utilize domain knowledge to produce an artificial neural network with optimal output performance. The effect of using the heuristics on neural network performance is illustrated by examining several applied artificial neural network systems. Identification of an optimal performance artificial neural network requires that a full factorial design with respect to the quantity of input nodes, hidden nodes, hidden layers, and learning algorithm be performed. The heuristic methods discussed in this paper produce optimal or near-optimal performance artificial neural networks using only a fraction of the time needed for a full factorial design.

© All rights reserved Walczak and Cerpa and/or Elsevier

 
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Cerpa, Narciso and Dambra, John (1999): An Analysis of the Data Base Design Heuristics. In: Kent, Allen and Williams, James G. (eds.). "Encyclopedia of Microcomputers, Volume 23, Supplement 2". pp. 1-15

 
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Otoya, Sergio and Cerpa, Narciso (1999): A Small Software Company Attempting to Improve Its Process. In: Proceedings of Ninth International Workshop on Software Technology and Engineering Practice September, 1999, Pittsburgh, USA. .

1998
 
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Cerpa, Narciso and Verner, June M. (1998): Case Study: The Effect of IS Maturity on Information Systems Strategic Planning. In Information and Management, 34 (4) pp. 199-208.

 
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Cerpa, Narciso and Dambra, John (1998): An Analysis of the Data Base Design Heuristics. In: (ed.). "Encyclopedia of Library and Information Science, Volume 63, Supplement 26". pp. 19-32

1997
 
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Verner, June M. and Cerpa, Narciso (1997): Prototyping: Does your Perception Depend on Your Job?. In Journal of Systems and Software, 36 (1) pp. 3-16.

 
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Verner, June M. and Cerpa, Narciso (1997): The Effect of Department Size on Developer Attitudes to Prototyping. In: Proceedings of the International Conference on Software Engineering May, 1997, Boston, USA. .

1996
 
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Cerpa, Narciso and Verner, June M. (1996): Practitioners Views of Software Quality. In International Journal of Computing and Engineering Management, 4 (3) pp. 1-15.

 
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Cerpa, Narciso, Chandler, Paul and Sweller, John (1996): Some Conditions Under Which Integrated Computer-Based Training Software Can Facilitate Learning. In Journal of Educational Computing Research, 15 (4) pp. 345-367.

 
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Cerpa, Narciso and Verner, June M. (1996): Prototyping: Some New Results. In Information and Software Technology, 38 (12) pp. 743-755.

 
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Cerpa, Narciso and Verner, June M. (1996): Information Systems Strategic Planning: A Longitudinal Case Study. In: Proceedings of the Second Annual Americas Conference on Information Systems August, 1996, Phoenix, USA. .

 
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Cerpa, Narciso and Shepherd, John (1996): A Cognitive Model for Facilitating the Teaching of Computer Programming Skills. In: Proceedings of the First Australasian Conference on Computer Science Education July, 1996, Sydney, Australia. pp. 1-6.

1995
 
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Cerpa, Narciso (1995): Pre-Physical Data Base Design Heuristics. In Information and Management, 28 (6) pp. 351-359.

 
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Cerpa, Narciso, Sweller, John and Chandler, Paul (1995): Some Consequences of Training Strategies When Learning a Computer Application. In: Australian Association for Research in Education Conference AARE November, 1995, Hobart, Australia. .

1994
 
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Cerpa, Narciso and Verner, June M. (1994). Prototyping: Practitioners' Views. City Polytechnic of Hong Kong

1993
 
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Cerpa, Narciso and Dean, Roy (1993): A Review of Object Oriented Database Concepts and their Implementation. In Australian Journal of Information Systems, 1 (1) pp. 13-23.

Object Oriented design and databases has attracted a great deal of attention in recent years. This article outlines and discusses the semantic data principles used inter alia in understanding Object Oriented concepts. To illustrate and lend substance to this discussion a list is presented of OODBMS implementations. Their weaknesses and strengths are analysed. And their suitability for specific applications is assessed. Finally we offer some conclusions about research in this area and the directions in which further development should proceed.

© All rights reserved Cerpa and Dean and/or University of Wollongong

 
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Parkin, Peter, Verner, June M. and Cerpa, Narciso (1993): End User Computing: A Study of Three Management Models. In: Avison, D., Kendall, J.E. and DeGross, J.I. (eds.). "Human, Organisational, and Social Dimensions of Information Systems Development". Amsterdam, The Netherlands: Elsevier Science Publisherspp. 353-374

1992
 
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Verner, June M., Cerpa, Narciso and Jeffery, Ross (1992). The Software Process Maturity Model and its Application to Australia. Australian Software Metrics Association

Report prepared for the Australian Software Metrics Association

© All rights reserved Verner et al. and/or their publisher

 
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