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Advancements in Open Distributed Processing (ODP) and Its Future in System Integration

This document presents a comprehensive overview of Open Distributed Processing (ODP) within the context of SC7 standards. It defines ODP and its role in facilitating distributed processing amid component heterogeneity and organizational autonomy. The goals of ODP standards emphasize application portability, interworking, meaningful information exchange, and distribution transparency. The document discusses ongoing and planned initiatives by the Object Management Group (OMG) and how they align with ODP concepts, including referencing relevant standards and addressing critical issues for successful system integration.

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Advancements in Open Distributed Processing (ODP) and Its Future in System Integration

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  1. Open Distributed Processing in SC7 - Status and Future Bryan Wood (Convenor WG19) Bryan.Wood@Open-IT.co.uk SC7 AG 12 May 2002

  2. What is ODP? • ODP and the OMG • ODP in SC7: Issues to consider

  3. What is ODP? Systems that support distributed processing despite: • heterogeneity of components • crossing of organisational boundaries (autonomy of systems) Enterprise systems, B2B systems, Web services etc

  4. Goals of ODP standards • portability of applications despite heterogeneity • interworking between ODP systems • exchange information meaningfully • use functionality conveniently • distribution transparency • hide the consequences of distribution for applications

  5. ODP standards: Reference Model for Open Distributed Processing A specification framework (and standards framework) covering all aspects of distributed systems • “enterprise”, system, technology • comprehensive and coherent object-oriented modelling concepts • Viewpoints and viewpoint specifications: • enterprise • information • computational • engineering ITU-T Rec. X901-904|ISO/IEC 10746 Parts 1-4

  6. ODP Notation and Architectural Framework standards • ISO/IEC 14750 ODP – Interface Definition Language • ISO/IEC 14771 ODP – Naming framework • ISO/IEC 14753 ODP – Interface references and binding • ISO/IEC 14752 ODP – Protocol support for computational interactions • ISO/IEC 15414 ODP – Enterprise Language

  7. ODP Component standards • ISO/IEC 13235 ODP – Trading Function • ISO/IEC 14769 ODP – Type repository

  8. ODP and the Object Management Group (OMG) - “subcontracting”? • OMG set up to help solve system integration problems by supplying open, vendor-neutral interoperability specifications. • RM-ODP referenced by OMG as defining an architectural framework for OMG specifications • OMG specifications being provided as PAS submissions for ODP Notation and Component standards • OMG Model Driven Architecture (MDA) incorporates RM-ODP concepts: • system specification using UML • separation of platform independent and platform specific specifications (PIM and PSM)

  9. OMG PAS submissions Current: • ISO/IEC 19500-2 ODP – Open Distributed Processing - General Inter-ORB Protocol (GIOP)/ Internet Inter-ORB Protocol (IIOP) • providing basic ODP protocol support for computational interactions • ISO/IEC 19501 Information technology – Unified Modeling Language (UML) • providing notation for ODP specifications Planned: • CORBA (Common Object Request Broker Architecture) Services • providing basic ODP functions

  10. ODP in SC7: Issues to consider • ODP and the OMG MDA address • good practice for the content of system specifications • quality • maintainability • Standards for specification for system integration • standards for specification for system distribution • These concerns should be related to other SC7 activities: • System software documentation (WG2) • Tools and environment (WG4) • Evaluation and measurement (WG6,12,13) • Lifecycle processes (WG7)

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