Xlang BPEL4WS

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Xlang BPEL4WS

  1. 1. XLANG BPEL4WS Kathrin Prantner kathrin.prantner@deri.at
  2. 2. 2 XLANGXLANG
  3. 3. 3 What is XLANG  Exchange Language – Web Service for Business Process Design  Microsoft – runnable on all platforms  Written format is XML  Biz Talk Application Designer
  4. 4. 4 Motivation  Enabling technology  New standards and descriptions around existing technologies => develope language which is able to handle  Business imperative  To ease the automation of business processes  To describe a standard for reuse by other tools
  5. 5. 5 Relationship with WSDL  Grounding of a XLANG service description is defined by using WSDL  XLANG describes the behavior as part of a business process  Actions in XLANG = operations of WSDL
  6. 6. 6 Business Process (I)  Contract between two ore more parties  XLANG service description describes the behavior  It is used a map – describes the connections between the ports  Each port is added to the map
  7. 7. 7 Business Process (II)
  8. 8. 8 Correlation  Correlation tokens  For automated instance routing  Messages to the correct port and instance  Instance: interaction with which the behavior of the service is represented  Calculated lifetime  Correlation set  Correlation group

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