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Arguments for Open Structure Execution Services

Arguments for Open Structure Execution Services Jessica Rubart 1 , Weigang Wang 1 , Jörg M. Haake 2 1 Fraunhofer Institute for Integrated Publication and Information Systems (IPSI), Darmstadt, Germany 2 FernUniversität Hagen, Hagen, Germany. Contents. EXTERNAL Object-oriented Software

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Arguments for Open Structure Execution Services

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  1. Arguments for • Open Structure Execution Services • Jessica Rubart1, Weigang Wang1, Jörg M. Haake2 • 1Fraunhofer Institute for Integrated Publication and Information Systems (IPSI), Darmstadt, Germany • 2FernUniversität Hagen, Hagen, Germany

  2. Contents • EXTERNAL • Object-oriented Software • Integration of Execution Services in the Concept of Open Service Provision • OHS Services and Web Services • Discussion

  3. EXTERNAL • EXTended Enterprise Resources, Network Architectures and Learning • EU project with five partners • Shared workspaces for supporting EEs • Hypermedia-based knowledge model integrated with process support • Methodology, infrastructure, and tools • Three real world use cases

  4. Extended Enterprise EXTERNAL Infrastructure Integration

  5. EE Infrastructure and Tools • Services • EXTERNAL shared repository • Collaboration services • Modeling services • Simulation service • Operational services (Execution)

  6. Infrastructure – Abstract View • Open Protocol for Work Process Support based on a hypermedia data model and represented with XML

  7. Integration of Services

  8. Integration of Services

  9. Integration of Services

  10. Integration of Services

  11. EXTERNAL - Summary • Repository services incorporate foundation services and a kind of structure service • Workware, SimVision and XCHIPS provide execution services on a workflow structure • Number of execution services provided by them is growing • Abstraction for execution services useful

  12. Object-oriented Software • Structure plays an important role • UML standard notation for modeling • Execution functionality, such as code generation or generating documentation • The same structure can be executed in several ways • Abstraction for execution services useful

  13. Integration in „Open Service Provision“ [Wiil et al.]

  14. Integration in „Open Service Provision“ [Wiil et al.] • Separate layer is open to any number of execution services • Neither structure services nor applications have to implement them • Where to put the execution services layer when considering a separate cooperation services layer (proposed by Tata et al.)? On top.

  15. OHS Services and Web Services • Make business functions readily sharable (through WSDL, SOAP, Java, XML, messaging APIs)

  16. OHS Services and Web Services • Compose them into composite services or link them into a flexible process flow (using e.g. XLANG or WSFL) • Deliver it in the right format (e.g. XML, Java, WML) • Make them discoverable and available to others anywhere (using UDDI standard)

  17. Discussion • Reference Architecture: Separate Execution Layer? • Where to put? • Integration of user interfaces • Distribution of execution services • Web Services: • Develop? • Learn from? • Utilize?

  18. Thanks Thanks for your attention!

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