Recent Trends in Algebraic Development Techniques

Thealgebraicapproachtosystemspeci?cationanddevelopment,borninthe early1970sasaformalmethodforabstractdatatypes,encompassestoday,atthe beginningofthethirdmillennium,theformaldesignofintegratedhardwareand softwaresystems,newspeci?cationframeworksandprogrammingparadigms, andawiderangeofapplicationareas. TheworkshopsonAlgebraicDevelopment Techniques,initiatedin1982astheworkshoponAbstractDataTypes,area prominentforumtopresentanddiscusscurrentresearchinthatarea. The15thInternationalWorkshoponAlgebraicDevelopmentTechniques (WADT2001)tookplaceinGenova,asasatelliteofETAPS2001,onApril 1-3,2001,andwasorganizedbyMauraCerioliandGiannaReggio. From1991to1995WADTworkshopswereheldjointlywiththeGeneral WorkshopoftheESPRITBasicResearchWorkingGroupCOMPASS. Following thistradition,theWADT2001washeldjointlywiththeGeneralWorkshopof theESPRITWorkingGroupCoFI. TheCommonFrameworkInitiative,started in1995andfundedsince1998asCoFIWG,iscenteredaroundthede?nitionof theCommonAlgebraicSpeci?cationLanguage(CASL). TheprogramstartedwithafulldaytutorialontheCASL,followedby32 presentations,severalofthemontheCASLaswell,organizedinparallelsessions duringthefollowingtwodays. Theparallelsessionsweredevotedto:logicsand proofs,concurrentprocesses,institutionsandcategories,applicationsandcase studies,higher-orderandparameterizedspeci?cations,staticanalysis,software architectures,graphandtransformationrules. Themaintopicsoftheworkshopwere: -algebraicspeci?cation -otherapproachestoformalspeci?cation -speci?cationlanguagesandmethods -termrewritingandproofsystems -speci?cationdevelopmentsystems(concepts,tools,etc. ) Theprogramcommitteeinvitedsubmissionsoffullpapersforpossibleinclusion inthisvolume,onthebasisoftheabstractsandthepresentationsatWADT 2001. Allthesubmissionsweresubjecttocarefulrefereeing,andtheselectionof paperswasmadefollowingfurtherdiscussionbythefullprogramcommittee. Weareextremelygratefultoallworkshopparticipants,tothe(other)m- bersoftheprogramcommittee,andtotheexternalrefereesfortheircontribution tothescienti?cqualityoftheworkshopandofthisvolume. TheWADTseriesissponsoredbyIFIPWG1. 3onFoundationsofSystem Speci?cation(seehttp://www. brics. dk/"pdm/IFIP-WG1. 3). November2001 MauraCerioliandGiannaReggio Organization ProgramCommittee MichelBidoit (Cachan,France) MauraCerioli (Genova,Italy) Hans-JorgKreowski (Bremen,Germany) PeterMosses,chair (Aarhus,Denmark) FernandoOrejas (Barcelona,Spain) FrancescoParisi-Presicce (Roma,Italy) GiannaReggio (Genova,Italy) DonaldSannella (Edinburgh,Scotland) AndrzejTarlecki (Warsaw,Poland) ExternalReferees EgidioAstesiano ManuelKoch MarekBednarczyk MikolajKonarski BenjaminBlanc AlexanderKurz AlexandreBoisseau SabineKuske TomaszBorzyszkowski SlawomirLasota PaoloBottoni ChristophLuth .. PaoloCenciarelli DirkPattinson HartmutEhrig Wies lawPawlo wski StevenEker Jean-ClaudeReynaud JeanGoubault-Larrecq MarkusRoggenbach PiotrHo?man SponsoringInstitutions CoFI(CommonFrameworkInitiative),ESPRITWorkingGroup29432. DISI,Universit'adegliStudidiGenova. IFIPWG1. 3onFoundationsofSystemSpeci?cation. TableofContents InteractiveRule-BasedSpeci?cationwithanApplication toVisualLanguageDe?nition ...1 R. Bardohl,M. Grosse-Rhode,andM. Simeoni AlgebraicAbstractions ...21 M. BidoitandA. Boisseau CombiningLogics:ParchmentsRevisited...48 C. Caleiro,P. Mateus,J. Ramos,A. Sernadas CanonicalInstitutionsofBehaviour ...71 J. F. CostaandH. Louren,co TheLub Thealgebraicapproachtosystemspeci?cationanddevelopment,borninthe early1970sasaformalmethodforabstractdatatypes,encompassestoday,atthe beginningofthethirdmillennium,theformaldesignofintegratedhardwareand softwaresystems,newspeci?cationframeworksandprogrammingparadigms, andawiderangeofapplicationareas. TheworkshopsonAlgebraicDevelopment Techniques,initiatedin1982astheworkshoponAbstractDataTypes,area prominentforumtopresentanddiscusscurrentresearchinthatarea. The15thInternationalWorkshoponAlgebraicDevelopmentTechniques (WADT2001)tookplaceinGenova,asasatelliteofETAPS2001,onApril 1-3,2001,andwasorganizedbyMauraCer...