TheEuropeanConferenceonObject-OrientedProgramming(ECOOP)conf- ence series, in cooperation with Springer-Verlag, is glad to o?er the obje- orientedresearchcommunitythesixtheditionoftheECOOPWorkshopReader, acompendiumofworkshopreportsandpostersummariesfromthe16thEu- peanConferenceonObject-OrientedProgramming(ECOOP2002). ECOOP2002washeldinMal aga,Spain,fromJune10thtoJune14th2002. Asusual,theworkshopstookplaceduringthe?rsttwodaysoftheconference andgaveauthorsandparticipantsanopportunitytopresentanddiscussideas thataretopicalandinnovativeinobject-orientedtechnology,inanatmosphere thatfosteredinteraction,exchange,andproblemsolving. ECOOP2002hosted19high-qualityworkshopscoveringalargespectrumof researchtopicsrelatedtoobject-orientedtechnology. Thisyear,theseworkshops wereselectedfrom25proposalsbytheworkshopselectioncommittee,prim- ilyinaccordancewiththeirscienti?cmeritandtheirprobabilityofgenerating livelydiscussion. Thisvolumecontainsthereportsofthose19workshops. Each chaptercoversoneworkshop,summarizingthecurrentresearchbeingcarried outintheworkshoptopic,themajorissuesdiscussed,themainconclusions, andpossibledirectionsforfurtherresearch. Eachchapter?nisheswithalistof updatedreferenceswherethereadercan?ndcomplementaryinformationabout theworkshoptheme. Thelastchaptercontainsthesummariesoftheposters displayedatECOOP2002. Thisbookwasonlypossiblethankstothee?ortofalargegroupofp- plecontributinginmanydi?erentways. Wewouldliketothankthemembers oftheselectioncommittee,eachworkshoporganizer,andeachworkshopand posterparticipant. Theadditionalworkfortheworkshoporganizersinterms ofrecordingandsummarizingthediscussionswillcertainlybeappreciatedby thereaders. Finallywewishtoconveyourwarmappreciationtoourcolleagues oftheECOOP2002organizationteamfortheiruniqueblendofe?ciencyand comradeship. Preparingforandholdingtheconferencewasalotoffun. Organizingtheworkshopsandthisbookprovedtobeverystimulatingand instructive;wewishourreadersanequallyfruitfulexperience. Wearepretty surethattheECOOP2002workshopreaderwillprovideyou,thereader,with anexcellentsnapshotofthemajortrendsinobject-orientedtechnology. October2002 JuanHerna ndez AnaMoreira Organization ECOOP2002wasorganizedbytheDepartmentofLenguajesyCienciasdela Computaci onoftheUniversityofMal aga,andtheDepartmentofInformat ica of the University of Extremadura, under the auspices of AITO (Association InternationalepourlesTechnologiesObjets). TheproceedingsofthemainconferencewerepublishedasLNCS2374. WorkshopChairs: JuanHerna ndez(UniversityofExtremadura) AnaMoreira(UniversidadeNovadeLisboa,Portugal) PosterChair: JuanM. Murillo(UniversityofExtremadura) WorkshopSelectionCommittee MehmetAksit UniversityofTwente,TheNetherlands Jo aoArau jo UniversidadeNovadeLisboa,Portugal ElisaBertino Universit`adegliStudidiMilano,Italy RobertFrance ColoradoStateUniversity,USA JuanHerna ndez UniversidaddeExtremadura,Spain AnaMoreira UniversidadeNovadeLisboa,Portugal AmbrosioToval UniversidaddeMurcia,Spain Contents ResourceManagementforSafeLanguages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GrzegorzCzajkowski,JanVitek GenerativeProgramming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 KrzysztofCzarnecki,KasperØsterbye,MarkusVolt er ToolsandEnvironmentsforLearningObject-OrientedConcepts. . . . . . . . . 30 IsabelMichiels,Ju rgenB orstler,KimB. Bruce 12thWorkshopforPhDStudentsinObjectOrientedSystems . . . . . . . . . . . 44 MiguelA. P erez,PedroJ. Clemente Web-OrientedSoftwareTechnology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 OscarPastor,DanielSchwabe,GustavoRossi,LuisOlsina Component-OrientedProgramming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 JanBosch,ClemensSzyperski,WolfgangWeck ConcreteCommunicationAbstractionsoftheNext701Distributed ObjectSystems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 AntoineBeugnard,SalahSadou,LaurenceDuchien,EricJul