Preface. Conference Committee. <STRONG>Invited Papers:</STRONG> E-commerce concerns: do we need to change some systems?; <EM>N. Chapin.</EM> E-workcell: a virtual reality web-based decision support system for assembly line planning; <EM>O. Gusikhin, et al.</EM> New technology great opportunities: how to exploit them; <EM>I. Bider, M. Khomyakov.</EM> How informatics can solve methodological gap in e-business modeling; <EM>M.J. Matsumoto.</EM> <STRONG>Part 1: Databases and</STRONG> <STRONG>Information Systems Integration.</STRONG> Data representation in industrial systems; <EM>C. Raibulet, C. Demartini.</EM> An XML-based virtual patient records system for healthcare enterprises; <EM>Zhang Xiaoou, Pung Hung</EM> <EM>Keng.</EM> Using full match classes for self-maintenance of mediated views; <EM>V. Magalhães, et al.</EM> A system for data change propagation in heterogeneous information systems; <EM>C. Constantinescu, et al.</EM> Semi-automatic wrapper generation and adaption: living with heterogeneity in a market environment; <EM>M. Christoffel, et al.</EM> FSQL: a flexible query language for data mining; <EM>R.A. Carrasco, et al.</EM> Using data mining techniques to analyze correspondence between user and scientific knowledge in an agricultural environment; <EM>D.</EM> <EM>Sánchez, et al.</EM> Implementation of fuzzy classification query language in relational databases using stored procedures; <EM>Y. Veryha.</EM> <STRONG>Part 2: Artificial Intelligence and Decision Support Systems.</STRONG> Storage of fuzzy information in continuous classifying associative memories; <EM>A.B. Bailón, et al.</EM> A case-based expert system for estimating the cost of refurbishing construction buildings; <EM>F. Marir, et al.</EM> Proof running two state-of-the-art pattern recognition techniques in the field of direct marketing; <EM>S. Viaene, et al.</EM> Simple decision support system based on fuzzy repertory table; <EM>J.J. Castro-Schez, et</EM> <EM>al.</EM> Supporting the optimisation of distributed data mining by predicting application run times; <EM>S, Krishnaswamy, et al.</EM> <STRONG>Part 3:</STRONG> <STRONG>Information Systems Analysis and Specification.</STRONG> Business modelling with UML: distilling directions for further research; <EM>S.de Cesare, et</EM> <EM>al.</EM> Updating data in GIS: how to maintain database consistency?; <EM>H.</EM> <EM>Kadri-Dahmani, A. Osmani.</EM> Analysis of the relation between the prescriptive and descriptive approaches of the information system planning; <EM>J.L.N. Audy.</EM> Designing business processes and communication structures for e-business using ontology-based enterprise models with mathematical models; <EM>H.M. Kim, K.D. Tham.</EM> Ontologies supporting business process re-engineering; <EM>A. Galatescu, T. Greceanu.</EM> Sequence constraints in business modelling and business process modelling; <EM>M.</EM> <EM>Snoeck.</EM> Analysing communication in the context of a software production organisation; <EM>M.C.C. Baranauskas, et al.</EM> A functional size measurement method for event-based object-oriented enterprise models; <EM>G. Poels.</EM> Conceptual architecture for the assessment and improvement of software maintenance; <EM>F. García, et al.</EM> A tool for assessing the consistency of websites; <EM>S. Steinau, et al.</EM> <STRONG>Part 4: Internet</STRONG> <STRONG>Computing and Electronic Commerce.</STRONG> An automated approach to quality-aware web publications; <EM>A. Ruiz, et al.</EM> Internet technology as a business tool: a test of its effectiveness; <EM>S. Bruque.</EM> Towards extended price models in XML standards for electronic product catalogues; <EM>O. Kelkar, et al.</EM> A semi-universal e-commerce agent: domain-dependant information gathering; <EM>A. Pivk, M. Gams.</EM> E-commerce business practices in the EU; <EM>H. Jahankhani, S.A. Alexis.</EM> Automatic verification of security in payment protocols for electronic commerce; <EM>M. Panti, et al.</EM> Staged implementation of e-business networks through ERP: a case study of Siemens (1998 2001); <EM>C.G. Ash, J.M. Burn.</EM> Author Index.