Lecture Notes in Computer Science 3292 CommencedPublicationin1973 FoundingandFormerSeriesEditors: GerhardGoos,JurisHartmanis,andJanvanLeeuwen EditorialBoard DavidHutchison LancasterUniversity,UK TakeoKanade CarnegieMellonUniversity,Pittsburgh,PA,USA JosefKittler UniversityofSurrey,Guildford,UK JonM.Kleinberg CornellUniversity,Ithaca,NY,USA FriedemannMattern ETHZurich,Switzerland JohnC.Mitchell StanfordUniversity,CA,USA MoniNaor WeizmannInstituteofScience,Rehovot,Israel OscarNierstrasz UniversityofBern,Switzerland C.PanduRangan IndianInstituteofTechnology,Madras,India BernhardSteffen UniversityofDortmund,Germany MadhuSudan MassachusettsInstituteofTechnology,MA,USA DemetriTerzopoulos NewYorkUniversity,NY,USA DougTygar UniversityofCalifornia,Berkeley,CA,USA MosheY.Vardi RiceUniversity,Houston,TX,USA GerhardWeikum Max-PlanckInstituteofComputerScience,Saarbruecken,Germany Robert Meersman Zahir Tari Angelo Corsaro PilarHerrero MaríaS.Pérez MilenaRadenkovic VictorRobles CorradoSantoro AntoniaAlbani Klaus Turowski Mustafa Jarrar Aldo Gangemi ErikDuval PeterSpyns AlexiosPalinginis(Eds.) On the Move to Meaningful Internet Systems 2004: OTM 2004 Workshops OTMConfederatedInternationalWorkshopsandPosters GADA,JTRES,MIOS,WORM,WOSE,PhDS,andINTEROP2004 AgiaNapa,Cyprus,October25-29,2004 Proceedings 1 3 VolumeEditors RobertMeersman VrijeUniversiteitBrussel,STARLab Pleinlaan2,Bldg.G/10,1050Brussels,Belgium E-mail:[email protected] ZahirTari RMITUniversity,SchoolofComputerScienceandIT CityCampus,GPOBox2476V,Melbourne,Victoria3001,Australia E-mail:[email protected] AngeloCorsaro AleniaMarconiSystems ViaTiburtinaKm12.400,00131Rome,Italy E-mail:[email protected] LibraryofCongressControlNumber:2004113941 CRSubjectClassification(1998):H.2,H.3,H.4,C.2,H.5,I.2,D.2,K.4 ISSN0302-9743 ISBN3-540-23664-3SpringerBerlinHeidelbergNewYork Thisworkissubjecttocopyright.Allrightsarereserved,whetherthewholeorpartofthematerialis concerned,specificallytherightsoftranslation,reprinting,re-useofillustrations,recitation,broadcasting, reproductiononmicrofilmsorinanyotherway,andstorageindatabanks.Duplicationofthispublication orpartsthereofispermittedonlyundertheprovisionsoftheGermanCopyrightLawofSeptember9,1965, initscurrentversion,andpermissionforusemustalwaysbeobtainedfromSpringer.Violationsareliable toprosecutionundertheGermanCopyrightLaw. SpringerisapartofSpringerScience+BusinessMedia springeronline.com ©Springer-VerlagBerlinHeidelberg2004 PrintedinGermany Typesetting:Camera-readybyauthor,dataconversionbyPTP-Berlin,Protago-TeX-ProductionGmbH Printedonacid-freepaper SPIN:11340553 06/3142 543210 GADA Pilar Herrero María S. Pérez Milena Radenkovic Victor Robles JTRES Angelo Corsaro Corrado Santoro MIOS Antonia Albani Klaus Turowski WORM Mustafa Jarrar Aldo Gangemi WOSE Erik Duval Peter Spyns PhDS Peter Spyns Antonia Albani Alexios Palinginis INTEROP Hervé Panetto Monica Scannapieco Martin Zelm OTM 2004 General Co-chairs’ Message TheGeneralChairsofOnTheMove2004,Larnaca,Cyprus,areoncemoreproud toobservethattheconferenceserieswestartedinIrvine,Californiain2002,and continued in Catania, Sicily last year, has turned out to be a concept that at- tractsarepresentativeselectionoftoday’sresearchindistributed,heterogeneous yet collaborative systems, of which the Internet and the WWW are its prime examples. Indeed,assuchlarge,complexandnetworkedintelligentinformationsystems become the focus and norm for computing, it is clear that one needs to address and discuss in a single forum the implied software and system issues as well as methodological, theoretical and application issues. This is why the OnTheMove (OTM)FederatedConferencesseriescoversanincreasinglywideyetcloselyknit range of topics such as data and Web semantics, distributed objects, Web ser- vices,databases,workflows,cooperation,ubiquity,interoperability,andmobility. OnTheMove wants to be a primary scientific forum where these aspects for the development of internet- and intranet-based systems in organizations and for e- businessareaddressedinaquality-controlledfundamentalway.Thisthird,2004 edition of the OTM Federated Conferences event therefore again provided an opportunity for researchers and practitioners to understand and publish these developments within their respective as well as within their broader contexts. OTMfirstofallco-locatesthreerelated,complementaryandsuccessfulmain conference series: DOA (Distributed Objects and Applications), covering the relevant infrastructure-enabling technologies, ODBASE (Ontologies, DataBases and Applications of SEmantics) covering Web semantics, XML databases and ontologies,andCoopIS(CooperativeInformationSystems)coveringtheapplica- tionofthesetechnologiesinanenterprisecontextthrough,forexample,workflow systems and knowledge management. Each of these three conferences treats its specifictopicswithinaframeworkof(a)theory,(b)conceptualdesignanddevel- opment, and (c) applications, in particular case studies and industrial solutions. Following and expanding the example set in 2003, we solicited and selected quality workshop proposals to complement the more “archival” nature of the mainconferences,withresearchresultsinanumberofselectedandmore“avant garde”areasrelatedtothegeneraltopicofdistributedcomputing.Forinstance, theso-calledSemanticWebhasgivenrisetoseveralnovelresearchareascombin- ing linguistics, information systems technology, and artificial intelligence, such as the modeling of (legal) regulatory systems and the ubiquitous nature of their usage. We were glad to see that in 2004 several of the Catania workshops re- emergedwithasecondedition(notablyWoRMandJTRES),andthatfourother workshops could be hosted and successfully organized by their respective pro- posers: GADA, MOIS, WOSE, and INTEROP. We trust that their audiences mutually productively and happily mingled with those of the main conferences. VIII Preface A special mention for 2004 is in order for the new Doctoral Symposium Workshop where three young postdoc researchers organized an original setup and formula to bring PhD students together and allow them to submit their research proposals for selection. A limited number of the submissions and their approaches were independently evaluated by a panel of senior experts at the conference, and presented by the students in front of a wider audience. These students also got free access to all other parts of the OTM program, and only paid a heavily discounted fee for the Doctoral Symposium itself. (In fact their attendance was largely sponsored by the other participants!) If evaluated as successful, it is the intention of the General Chairs to expand this model in future editions of the OTM conferences and so draw in an audience of young researchers to the OnTheMove forum. All three main conferences and the associated workshops share the dis- tributed aspects of modern computing systems, and the resulting application- pullcreatedbytheInternetandtheso-calledSemanticWeb.ForDOA2004,the primary emphasis stayed on the distributed object infrastructure; for ODBASE 2004, it was the knowledge bases and methods required for enabling the use of formalsemantics;andforCoopIS2004themaintopicwastheinteractionofsuch technologies and methods with management issues, such as occurs in networked organizations. These subject areas naturally overlap and many submissions in factalsotreatenvisagedmutualimpactsamongthem.Asfortheearliereditions, the organizers wanted to stimulate this cross-pollination with a shared program of famous keynote speakers: this year we got no less than Roberto Cencioni of the EC, Umesh Dayal of HP Labs, Hans Gellersen of Lancaster University, and Nicola Guarino of the Italian CNR! As before we encouraged multiple-event at- tendancebyprovidingauthorswithfreeaccesstootherconferencesorworkshops of their choice. We received a total of 350 submissions for the three conferences and approx- imately 170 in total for the workshops. Not only can we therefore again claim successinattractingarepresentativevolumeofscientificpapers,butsuchahar- vest allowed the program committees of course to compose a high-quality cross- sectionofworldwideresearchintheareascovered.Inspiteofthelargenumberof submissions, the Program Chairs of each of the three main conferences decided to accept only approximately the same number of papers for presentation and publication as in 2002 and 2003 (i.e., an average of 1 paper out of 4 submitted, not counting posters). For the workshops, the acceptance rate varied but was stricterthanbefore,about1in2,to1in3forGADAandWoRM.Also,forthis reason, we decided to separate the proceedings into two books with their own titles, with the main proceedings in two volumes and the workshop proceedings in a separate, third volume, and we are grateful to Springer for their sugges- tions and collaboration in producing these books. The reviewing process by the respective program committees as usual was performed very professionally and each paper in the main conferences was reviewed by at least three referees. It may be worthwhile to emphasize that it is an explicit OnTheMove policy that all conference program committees and chairs make their selections completely Preface IX autonomously from the OTM organization. Continuing an equally nice (but ad- mittedly costly) tradition, the OnTheMove Federated Event organizers decided againtomakeALL(sizeable!)proceedingsavailabletoALLparticipantsofcon- ferences and workshops, independent of their registrations. The General Chairs really are especially grateful to all the many people who were directly or indirectly involved in the setup of these federated conferences andindoingsomadethemasuccess.Fewpeoplerealizewhatalargenumberof peoplehavetobeinvolved,andwhatahugeamountofwork,and,yes,riskorga- nizinganeventlikeOTMentails.Inparticularwethereforethankoureightmain conference PC co-chairs (DOA 2004: Vinny Cahill, Steve Vinoski, and Werner Vogels; ODBASE 2004: Tiziana Catarci and Katia Sycara; CoopIS 2004: Wil van der Aalst, Christoph Bussler, and Avigdor Gal) and our 15 workshop PC co-chairs (Angelo Corsaro, Corrado Santoro, Mustafa Jarrar, Aldo Gangemi, Klaus Turowski, Antonia Albani [2x], Alexios Palinginis, Peter Spyns [2x], Erik Duval,PilarHerrero,MariaS.Perez,MonicaScannapieco,PaolaVelardi,Herve Panetto, Martin Zelm) who, together with their many PC members, did a su- perb and professional job in selecting the best papers from the large harvest of submissions. We also thank our Publicity Chair (Laura Bright) and Publication Chair (Kwong Yuen Lai), and of course our overall Workshops Chair (Angelo Corsaro). We do hope that the results of this federated scientific event contribute to yourresearchandyourplaceinthescientificnetwork.Welookforwardtoseeing you at next year’s edition! August 2004 Robert Meersman, Vrije Universiteit Brussel, Belgium Zahir Tari, RMIT University, Australia Organization Committee The OTM (On The Move) 2004 Federated Workshops, involving six workshops (i.e., GADA – Workshop on Grid Computing and Its Application to Data Anal- ysis, JTRES – Workshop on Java Technologies for Real-Time and Embedded Systems, MIOS – Workshop on Modeling Inter-organizational Systems, WORM – Workshop on Regulatory Ontologies, WOSE – Workshop on Ontologies, Se- mantics,andE-Learning,PhDS–PhDSymposium,andINTEROP–INTEROP NoE Dissemination Workshop), were proudly supported by RMIT University and Vrije Universiteit Brussel. Executive Committee OTM 2004 General Co-chairs RobertMeersman(VrijeUniversiteitBrussel) and Zahir Tari (RMIT University) GADA 2004 PC Co-chairs Pilar Herrero (Universidad Politecnica de Madrid), Mar´ıa S. P´erez (Universidad Polit´ecnica de Madrid), Milena Radenkovic (University of Nottingham), and Victor Robles (Universidad Politecnica de Madrid) JTRES 2004 PC Co-chairs Angelo Corsaro (Washington University), Corrado Santoro (University of Catania) MIOS 2004 PC Co-chairs AntoniaAlbani(UniversityofAugsburg)and Klaus Turowski (University of Augsburg) WORM 2004 PC Co-chairs Mustafa Jarrar (Vrije Universiteit Brussel) and Aldo Gangemi (ISTC-CNR) WOSE 2004 PC Co-chairs Erik Duval (Katholieke Universiteit Leuven) and Peter Spyns (Vrije Universiteit Brussel) PhDS 2004 PC Co-chairs Antonia Albani (University of Augsburg), Alexios Palinginis (ETHZ), and Peter Spyns (Vrije Universiteit Brussel) INTEROP 2004 PC Co-chairs Monica Scannapieco (University of Rome “La Sapienza”), Paola Velardi (University of Rome “La Sapienza”), Herv´e Panetto (University Henri Poincar´e, Nancy 1), and Martin Zelm (CIMOSA Association) Publication Chair Kwong Yuen Lai (RMIT University) Organizing Chair Skevos Evripidou (University of Cyprus) Publicity Chair Laura Bright (Oregon Graduate Institute) XII Organization GADA 2004 Program Committee Jos´e Mare Benford Miguel Marquina Chris Greenhalgh Domenico Laforenza Jos´e Luis Bosque Asuncio´n Go´mez David Walker Savas Parastatidis Alberto Sanchez Ang´elica de Antonio Jon Garibaldi Phil Lord Toni Cortes Jesu´s Carretero Jemal Abawajy F´elix Garc´ıa Javier Segovia Steve Chiu Heinz Stockinger Vicente Mart´ın Andrea Omicini Francisco Rosales Omer Rana Jan Humble Rajkumar Buyya JTRES 2004 Program Committee Greg Bollella Doug Locke Joe Cross Joe Loyall Ron Cytron M. Teresa Higuera-Toledano Peter Dibble David Holmes Chris D. Gill Kelvin Nielsen Giuseppe Di Giore Agostino Poggi Miguel De Miguel John Regehr Marco Fargetta Martin Rinard Marisol Garcia Valls Douglas Schmidt Doug Jensen Jan Vitek Purdue Doug Lea Andy Wellings MIOS 2004 Program Committee Antonia Albani Zahir Irani Bernhard Bauer Stefan Klein Jorg Becker Peter Loos Radu D. Bercaru Masao J. Matsumoto Peter Bernus Arturo Molina Christoph Bussler Moira Norrie Emmanuel delaHostria Oliver Roos Jan L.G. Dietz Michael Rosemann Klaus R. Dittrich Klaus Turowski Rony G. Flatscher Vijay K. Vaishnavi Michael Huhns Organization XIII WORM 2004 Program Committee Aldo Gangemi Leonardo Lesmo Andr´e Valente Marc Wilikens Andrew Stranieri Mariano F. Lopez Bart Verheij Mustafa Jarrar Cecilia M. Sjoberg Nicklas Lundblad Carole Hafner Richard Benjamins Giancarlo Guizzardi Rita Temmerman Guiraude Lame Robert Meersman Jaime Delgado Said Tabet Jerome Euzenat Valentina Tamma Joost Breuker Youssef Amghar WOSE 2004 Program Committee Lora Aroyo Wolfgang Nejdl Erik Duval Daniel Rehak Wayne Hodgins Tyde Richards Robert Farrell Peter Spyns Paul LeFrere Frans Van Assche Ambjorn Naeve Martin Wolpers PhDS 2004 Program Committee Sonia Bergamaschi Jan Dietz Jaime Delgado Werner Nutt INTEROP 2004 Program Committee Giuseppe Berio Maria-Jose Nunez Arne Berre Michele Missikoff Nacer Boudjlida Herv´e Panetto Tiziana Catarci Colin Piddington David Chen Richard Stevens Thomas Deproix Martin Zelm Frank W. Jaekel