BryanWood@Open-ITcouk.ppt
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1、UML for ODP system specificationsBryan Wood ConvenorConvenor,JTC1/SC7/WG19,JTC1/SC7/WG19Bryan.WoodOpen-IT.co.ukBryan.WoodOpen-IT.co.ukITU-T/SG 17 ITU-T/SG 17 Geneva,14 March 2004Geneva,14 March 2004ITU-T/SG 17 Mar 14 20041Use of UML for ODP system specifications-X.906|ISO/IEC 19793A standard coverin
2、g:definition of a set of UML profiles for edefinition of a set of UML profiles for ex xpressingpressing a a system specification in terms of system specification in terms of ODP viewpoint ODP viewpoint specificationsspecifications relationships between the resultant ODP viewpoint relationships betwe
3、en the resultant ODP viewpoint specifications specifications relationships between a system specification using relationships between a system specification using ODP viewpoint specifications ODP viewpoint specifications and the and the OMG OMG Model Model Driven ArchitectureDriven Architecture ITU-
4、T/SG 17 Mar 14 20042The Reference Model of ODPA framework for A framework for ODP standardization and system ODP standardization and system specificationspecification covering all aspects of distributed systems covering all aspects of distributed systems (“enterprise”context,functionality,infrastruc
5、ture,(“enterprise”context,functionality,infrastructure,technology)and comprisingtechnology)and comprisinga comprehensive and coherent set of object-oriented a comprehensive and coherent set of object-oriented modelling modelling conceptsconceptsa structure for specifications in terms of viewpoints a
6、 structure for specifications in terms of viewpoints on a systemon a systema language(concepts and rules)for expressing each a language(concepts and rules)for expressing each viewpoint specification viewpoint specification ITU-T/SG 17 Mar 14 20043Modelling conceptsInterpretation conceptsentity,abstr
7、action,system,architectureentity,abstraction,system,architectureBasic modelling conceptsobject,action,environment(of an object),object,action,environment(of an object),interface,activity,location(in space/time)interface,activity,location(in space/time)Specification conceptscomposition/decomposition(
8、of objects),type composition/decomposition(of objects),type(of an),template,role(of an),template,role ITU-T/SG 17 Mar 14 20044Modelling conceptsOrganisational conceptsOrganisational concepts configuration(of objects),group,configuration(of objects),group,domain domainProperties of systems and object
9、sProperties of systems and objects transparency,contracts,transparency,contracts,QoSQoS,policy and prescriptions,policy and prescriptions on behaviour,on behaviour,Naming conceptsNaming concepts Name,identifier,name space,name resolutionName,identifier,name space,name resolutionBehaviour conceptsBeh
10、aviour concepts activity structure,contractual behaviour,causality,activity structure,contractual behaviour,causality,binding,dependabilitybinding,dependabilityITU-T/SG 17 Mar 14 20045ViewpointsDifferent abstractions of the same systemreflect different concernsreflect different concernsexpressed in
11、terms of specific viewpoint concepts expressed in terms of specific viewpoint concepts and rules(viewpoint languages)based on the and rules(viewpoint languages)based on the foundationfoundation modelling modelling conceptsconceptsA mechanism for dealing with the complexity of distributed systemsITU-
12、T/SG 17 Mar 14 20046Viewpoint SpecificationsSpecifications of a system from different viewpointsrelated and mutually consistentrelated and mutually consistentUsing the viewpoint languages and the foundation modelling conceptsITU-T/SG 17 Mar 14 20047ODP viewpoint specifications-different concernsSyst
13、emEnterpriseEnterpriseComputationComputationInformationInformationTechnologyTechnologyEngineeringEngineeringITU-T/SG 17 Mar 14 20048The enterprise specificationSpecifies the roles played by an system in its Specifies the roles played by an system in its organisational organisational environmentenvir
14、onmentAn object model of a social/commercial An object model of a social/commercial organisation organisation in terms of:in terms of:enterprise objectsenterprise objects communities communities(of(of enterprise objectsenterprise objects)objectivesobjectives behaviourbehaviour rolesroles processespr
15、ocesses policypolicyITU-T/SG 17 Mar 14 20049The information specificationSpecifies system Specifies system behaviour behaviour abstracted from abstracted from implementation implementation An object model of the An object model of the systemsystem describing the describing the semantics of informati
16、on and of information semantics of information and of information processing in the processing in the systemsystem in terms of:in terms of:information objectsinformation objects invariant schemainvariant schema-predicates on -predicates on information information objectsobjects that must always be t
17、rue that must always be true static schemastatic schema-state of -state of information objectsinformation objects at at some some location in timelocation in time dynamic schemadynamic schema-allowable state changes of -allowable state changes of information objectsinformation objects ITU-T/SG 17 Ma
18、r 14 200410The computational specificationSpecifies computational structure in terms of units of Specifies computational structure in terms of units of distribution and portability and their interactions distribution and portability and their interactions abstracted from the detail of how distributi
19、on is abstracted from the detail of how distribution is accomplishedaccomplishedAn object model of the An object model of the systemsystem describing the describing the structure of processing in terms of:structure of processing in terms of:computational objectscomputational objects interfacesinterf
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