Web services for Enterprise Collaboration
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Web services for Enterprise Collaboration

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Web services for Enterprise Collaboration Web services for Enterprise Collaboration Presentation Transcript

  • Web services for Enterprise Collaboration Applying MDA to web services for enterprise collaboration Doc Mars/2002-04-10 Doc webserv/2002-04-06 WSDL/Soap ECA WSEC
  • Quick Overview
    • WSDL provides the mechanism for specifying web services and endpoints
    • The Enterprise Collaboration Architecture adopted in EDOC provides a modeling framework for collaboration
    • Providing an ECA<>WSDL mapping in the RFP enhances both technologies using MDA
  • Using MDA for WS WSDL & Soap Mapping “ PIM” “ PSM” Business Focused ECA Model
  • Collaboration is Key
    • Collaboration & integration is a key differentiation and key cost center for the enterprise (Healthcare Example)
      • Customer Collaboration
      • Claim processing
      • Disputes
      • Physician Collaboration
      • Payer Collaboration
      • Hospital Collaboration
      • Broker Collaboration
      • Government Collaboration
      • Employee Collaboration
      • Others...
    The system integrates multiple collaborations
  • EDOC – Enterprise Collaboration Architecture Provides a standard UML “PIM” profile suitable for enterprise application of web services
  • ECA Community Process
    • The “community process”, the roles and interactions in a collaboration
    Protocol WSDL
  • ECA Protocols WSDL Port Type
  • ECA as the normal form EDOC-ECA Web Services (WSDL) ebXML (BPSS) J2EE (Java RMI) Corba MOM (MQ-Series) The standard way to model and tool for multiple technologies MDA Mappings
  • The RFP Web Services for Enterprise Collaboration WSEC
  • Solicits proposals for
    • A Mapping from EDOC-Enterprise Collaboration Architecture to WSDL 1.1 with attachments and a SOAP binding.
    • A Mapping from WSDL 1.1 with a Soap binding to the EDOC-Enterprise Collaboration Architecture.
    • Any required extensions to the EDOC-Enterprise Collaboration Architecture to represent WSDL semantics.
  • Requirements
    • Submissions shall specify complete mapping rules enabling translation of the applicable features of an ECA specification to a valid set of WSDL service definitions.
    • Submissions shall specify which version(s) WSDL, Schema and EDOC they support.
    • Submissions shall specify complete and isomorphic mapping rules enabling translation of all of the features of a valid WSDL specification to an ECA specification.
    • Submissions shall specify all extensions to ECA required to fully represent WSDL semantics.
  • Optional Requirements
    • As this is the first ECA mapping RFP, Submissions may require and provide enhanced mechanisms or methodologies for augmenting ECA specifications with mapping parameters and technology specific semantics.
  • Issues to be discussed
    • Proposals shall include information relative to future support for evolving WSDL “flow” languages.
    • Proposals may discuss how their solution may augment or be integrated with other standards activities such as ebXML or JCP-159.
  • Evaluation Criteria
    • Independence
      • Ability for a WSDL domain to inter-work without each having prior knowledge of the other's implementation.
    • Completeness
      • Preservation of content and semantics between transformations.
    • Ease of use
      • The solution should, to the greatest extent possible, be easy to use and understand.
  • Business Case
    • · High level support for understanding and documenting collaborative business processes.
    • · Loose coupling between independent parties in a collaboration
    • · Tighter coupling in the software development life-cycle between design and implementation processes and artifacts.
    • · Consistency in the way WSDL is used to implement collaboration.
    • · A standard way to use UML for web services.
    • · Enhanced support for asynchronous interactions.
    • · Automation of the development process from design to implementation.
    • · A faster, more deterministic development processes.
    • · Ability to adapt to changing business requirements.
    • · Ability to adapt to multiple and changing infrastructure technologies.
    • · Full life-cycle tool support
  • Points
    • Scope
      • This is a small and very focused RFP
      • It maps between two existing specifications
      • Easy - there are no known “large issues”
      • Proprietary implementations already exist
    • High value
      • Provides real user advantage
        • How the enterprise can utilize web services
        • How UML based tools can facilitate web services
      • Realizes MDA for a hot technology
      • Establishes OMG in the “Enterprise” web services space
  • What next
    • Assess acceptance of issuing such an RFP
    • Identify key players to refine and sponsor the RFP
    • Issue in Orlando?
  • Issues
    • Schema type system extension limitts
    • Abstract vs bound binding
    • More specific schema reference
    • [email_address]
    • Should comments for added semantics be normative?
  • Does ECA map well to WSDL? An approach to the mapping
  • ECA/WSDL mapping
    • ECA works well as a modeling framework for WSDL
    • How major concepts could map
      • WSDL Port <-> ECA Port
      • WSDL Operation <-> ECA Flow port (one way) or Operation (Two way)
      • WSDL Service <-> ECA Component
      • WSDL Port type <-> ECA Protocol
      • WSDL Message <-> ECA Document type
  • WSDL/ECA Differences
    • WSDL Adds
      • Technology binding and endpoints
    • ECA adds
      • Choreography, nested conversations, two-way protocols, nested components.