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IRS-II: A Framework and Infrastructure for Semantic Web Services

IRS-II: A Framework and Infrastructure for Semantic Web Services. Motta, Domingue, Cabral, Gaspari Presenter: Emilia Cimpian. Overview of Topics. What is IRS? The IRS-II Features IRS-II Approach IRS-II Architecture IRS Server IRS Publisher IRS Client Conclusions. What is IRS.

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IRS-II: A Framework and Infrastructure for Semantic Web Services

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  1. IRS-II: A Framework and Infrastructure for Semantic Web Services Motta, Domingue, Cabral, Gaspari Presenter: Emilia Cimpian

  2. Overview of Topics • What is IRS? • The IRS-II Features • IRS-II Approach • IRS-II Architecture • IRS Server • IRS Publisher • IRS Client • Conclusions

  3. What is IRS • IRS - Internet Reasoning Service • IRS-II • A framework and implemented infrastructure • Goal: to support the publication, location, composition and execution of heterogeneous web services, augmented with semantic descriptions of their functionalities

  4. The IRS-II Features • It supports on-click publishing of “standard” programming code • Builds on knowledge modeling research on reusable components for knowledge-based systems • Separates task specifications from method specifications and from the domain model • Supports capability driven service invocation • IRS-II services are web service compatible

  5. IRS-II Approach • Follows the UPML framework developed within the IBROW project • Classes of components (according UPML) • Domain models • Task models • Problem Solving Methods • Bridges

  6. IRS-II Approach(2) Ontology Ontology Ontology Domain Model UPML Framework Problem Solving Methods Bridge Task Model Bridge Bridge Application Specific Knowledge Application Specific Knowledge Knowledge Intensive Application Library

  7. Domain Models IRS Publisher IRS Server Lisp Method Specifications + Registry of Implementers Task Specifications + SOAP Binding IRS Publisher S O A P Java Ontologies IRS Publisher Java WS IRS Publisher Java WS IRS-II Architecture SOAP IRS Client

  8. IRS-II Architecture(2) IRS Server • holds descriptions of semantic web services • knowledge level description • the UPML framework of tasks • PSMs • domain models • set of mapping mechanisms • used for connecting the knowledge level descriptions to a specific web service.

  9. IRS-II Architecture(3) IRS Publisher • Plays two roles in IRS-II framework: • links web services to their semantic descriptions within the IRS server. • automatically generates a set of wrappers which turn standalone Lisp or Java code into a web service described by a PSM.

  10. IRS-II Architecture(4) IRS Client • key feature of IRS-II is that web service invocation is capability driven. • An IRS-II user simply asks for a task to be achieved and the IRS-II broker locates an appropriate PSM and then invokes the corresponding web service • The same functionality can also be invoked programmatically, through appropriate APIs associated with the current client platforms

  11. Conclusions • IRS-II: • a framework and an infrastructure which supports the publication, discovery, composition and use of semantic web services; • provides one-click publishing support for different software platforms, to facilitate publishing and semantic annotation of web services.

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