Distributed Communities on the Web

Communities are groupings of distributed objects that communicate, directly orindirectly,throughthemediumofasharedcontext.Thisconferencebrought togetherresearchersinterestedinthetechnicalissuesofsupportingcommunities. DCW 2002 was held in Sydney, Australia, and was hosted by the Software EngineeringResearchGroupandtheSchoolofComputerScienceandEngine- ingattheUniversityofNewSouthWales.ItwasthefourthintheDCWseries, thepreviousconferenceshavingtakenplaceinQu ebec(2000,LNCS1830)and inRostock(1998and1999,UniversityofRostockPress). Theprogramcommitteeselected25papersfrom59submissionsfromaround theworld.Eachsubmissionwasfullyrefereedbyatleastthreereviewers,either members of the program committee or other external referees. Reviewers were selectedtoensuretheyhadtherequiredexpertiseforthepapers topics.Special carewastakentoavoidcon?ictsofinterestbyensuringthatifaprogramc- mittee member was co-author of one of the submissions, then the paper would be reviewed by program committee members or additional reviewers who were notclosecollaboratorsofthesubmittingauthors. Inadditiontothesepapers,theproceedingsbeginwithafullyrefereeds- marychapter,entitledOpenProblemsinDistributedCommunities,whichgives anoverviewofthe?eld. This year, we were pleased to welcome as the invited speaker Philippe van Nedervelde, CEO of E-SPACES (Belgium) and X3D Technologies (USA), who gaveusafascinatingpresentationonVirtual3DWorldCommunities. We would like to thank the members of the program committee and the additional reviewers for the thorough reviews of the submitted papers, the - thorsforsubmittingtheircontributions,andtheauthorsofacceptedpapersfor theircollaborationinpreparingtheseproceedings.SpecialthanksgoestoBlanca Mancilla, the local arrangements chair, for all the work she did before, during, andaftertheconference. We are convinced that this conference series is very timely, and meets the needs of many researchers interested in building networked communities. We hope that you ?nd the proceedings interesting and stimulating, and hope that youwilljoinusinUlminSpring2004forthenextDCWconference. September2002 JohnPlaice PeterKropf PeterSchulthess JacobSlonim Organization DCW 2002 was organized with the support of the School of Computer Science and Engineering and the Software Engineering Research Group at the Univ- sity of New South Wales, Sydney, Australia, in cooperation with ACM, ACM SIGPLAN,andACMSIGWEB.

Includes supplementary material: sn.pub/extras

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during, andaftertheconference. We are convinced that this conference series is very timely, and meets the needs of many researchers interested in building networked communities. We hope that you ?nd the proceedings interesting and stimulating, and hope that youwilljoinusinUlminSpring2004forthenextDCWconference. September2002 JohnPlaice PeterKropf PeterSchulthess JacobSlonim Organization DCW 2002 was organized with the support of the School of Computer Science and Engineering and the Software Engineering Research Group at the Univ- sity of New South Wales, Sydney, Australia, in cooperation with ACM, ACM SIGPLAN,andACMSIGWEB.

Inhalt
Open Problems in Distributed Communities.- Position Papers.- The Medium Is the Message.- A Middleware Architecture for Personalized Communities of Devices.- A General Purpose Model for Presence Awareness.- SecAdvise: A Security Mechanism Advisor.- Adaptive Networks.- Research on Reliable Communication in Real-Time Collaborative Designing Systems.- Efficient Connection Management for Web Applications.- QoS Performance Improvement for Web Applications.- An Efficient Algorithm for Application-Layer Anycasting.- Experimenting with Gnutella Communities.- Collaborative Systems.- The SmartPhone: Interactive Group Audio with Complementary Symbolic Control.- PIÑAS: Supporting a Community of Co-authors on the Web.- A Group-Based Time-Stamping Scheme for the Preservation of Group Intentions.- A User-Centred Consistency Model in Real-Time Collaborative Editing Systems.- Multi Agent Transactional Negotiation: Application to E-marketing.- A Rule-Driven Approach for Defining the Behaviour of Negotiating Software Agents.- Distributed Transaction Management in a Peer-to-Peer Process-Oriented Environment.- Languages for the Web.- Using XML Schemas to Create and Encode Interactive 3-D Audio Scenes for Multimedia and Virtual Reality Applications.- The Design of High-Level Database Access Method in a Web-Based 3D Object Authoring Tool.- Language Standardization for the Semantic Web: The Long Way from OIL to OWL.- Noema: A Metalanguage for Scripting Versionable Hypertexts.- Adaptive Distributed Systems.- Sharing Social Recommendations: Towards a Social Portal.- Enabling Technologies for Communities at Web Shops.- Modelling Service-Providing Location-Based E-communities and the Impact of User Mobility.- Client Migration in a Continuous Data Network.- Using Jini to Integrate HomeAutomation in a Distributed Software-System.