This book constitutes the thoroughly refereed post-proceedings of the 6th International Workshop on Open Hypermedia Systems, OHS-6, and the 2nd International Workshop on Structural Computing, SC-2, held at the 11th ACM Conference on Hypertext and Hypermedia in San Antonio, Texas, USA in May/June 2000. The 19 revised full papers presented were carefully reviewed and selected for inclusion in the book. All current issues on open hypertext systems and structural computing are addressed.

This book presents the joint post-proceedings of three International Workshops held as part of the 12th ACM Conference on Hypertext and Hypermedia in Aarhus, Denmark in August 2001.The 28 revised full papers presented were carefully refereed and selected during two rounds of reviewing and revision. In accordance with the workshop topics, the papers are organized in sections on open hypermedia systems, structural computing, and adaptive hypermedia.

This volume contains the ?nal proceedings of the MetaInformatics Symposium 2003 (MIS 2003). The event was held September 17–20 on the campus of the Graz University of Technology in Graz, Austria. As with previous events in the MIS series, MIS 2003 brought together - searchers and practitioners from a wide variety of ?elds to discuss a broad range of topics and ideas related to the ?eld of computer science. The contributions that were accepted to and presented at the symposium are of a wide variety. Theyrangefromtheoreticalconsiderationsofimportantmetainformatics-related questions and issues to practical descriptions of approaches and systems that - fer assistance in their resolution. I hope you will ?nd the papers contained in this volume as interesting as the other members of the program committee and Ihave. These proceedings would not have been possible without the help and ass- tance of many people. In particular I would like to acknowledge the assistance of Springer-Verlag in Heidelberg, Germany, especially Anna Kramer, the computer science editor, and Alfred Hofmann, the executive editor for the LNCS series.

This volume contains the final proceedings of the 2004 Metainformatics Symposium (MIS 2004). The event was held during 15–18 September 2004 in Salzburg, Austria at Salzburg Research.

This book constitutes the thoroughly refereed post-proceedings of the Metainformatics Symposium, MIS 2002, held in Esbjerg, Denmark in August 2002.The 15 revised full papers and 3 revised short papers presented together with two introductory articles by the volume editor were carefully reviewed and selected for inclusion in the book. Among the topics addressed are software development, cooperative knowledge management, Web issues, structural computing, content management systems, object-oriented programming, hypermedia, multimedia, metadata, UML, configuration management, Web services, and infrastructure resource management.

Welcome to the 8th International Workshop on Groupware (CRIWG 2002)! The previous workshops took place in Lisbon, Portugal (1995), Puerto Varas, Chile (1996), El Escorial, Spain (1997), Búzios, Brazil (1998), Cancun, Mexico (1999), Madeira, Portugal (2000), and Darmstadt, Germany (2001). CRIWG workshops follow a simple recipe for success: good papers, a small number of participants, extensive time for lively and constructive discussions, and a high level of cooperation both within and between paper sessions. CRIWG 2002 continued this tradition. CRIWG 2002 attracted 36 submissions from 13 countries, nine of them outside Ibero-America. Each of the 36 articles submitted was reviewed by at least three members of an internationally renowned Program Committee. This year we used a double-blind reviewing process, i. e. , the reviewers did not know who the authors of the papers were. In addition, the reviewers were chosen based on their expertise and we also ensured that they came from countries and institutions not related to those of the paper’s authors. This reviewer assignment worked remarkably well, as indicated by the high average confidence value the reviewers gave their own reviews. This means that papers were usually reviewed by experts in the paper’s topic. As a consequence, reviews were usually quite extensive and contained many suggestions for - provements. I would like to thank all the members of the Program Committee for their hard work, which I am sure contributed to improving the quality of the final articles.

Digital Libraries are complex and advanced forms of information systems which extend and augment their physical counterparts by amplifying existing resources and services and enabling development of new kinds of human problem solving and expression. Their complexity arises from the data-rich domain of discourse as well as from extended demands for multi-disciplinary input, involving distributed systems architectures, structured digital documents, collaboration support, human-computer interaction, information filtering, etc. In addition to the broad range of technical issues, ethics and intellectual property rights add to the complication that is normally associated with the development, maintenance, and use of Digital Libraries. The Second European Conference on Digital Libraries (ECDL’98) builds upon the success of the first of this series of European Conferences on Research and Advanced Technology for Digital Libraries, held last year in Pisa, Italy, September 1-3, 1997. This series of conferences is partially funded by the TMR Programme of the European Commission and is actively supported and promoted by the European Research Consortium on Informatics and Mathematics (ERCIM). The aim is to bring together the different communities involved in the development of Digital Libraries, to review progress and to discuss strategies, research and technological development (RTD) issues, as well as specific topics related to the European context. These communities include professionals from universities, research centres, industry, government agencies, public libraries, etc.