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6th Expert Meeting Business Process Management (BPM) Business Activity Monitoring (BAM) Complex Event Processing (CEP)

6th Expert Meeting Business Process Management (BPM) Business Activity Monitoring (BAM) Complex Event Processing (CEP) Service Oriented Architecture (SOA) Event Driven Architecture (EDA). 1. BPEL – what is it? | Kuno Grün. Elements of BPEL | Erwin Buda. 2.

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6th Expert Meeting Business Process Management (BPM) Business Activity Monitoring (BAM) Complex Event Processing (CEP)

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  1. 6th Expert Meeting Business Process Management (BPM) Business Activity Monitoring (BAM) Complex Event Processing (CEP) Service Oriented Architecture (SOA)Event Driven Architecture (EDA)

  2. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  3. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  4. BPEL: Definition • BPEL is an XML-based language for standardizing business processes in a distributed or grid computing environment that enables separate businesses to interconnect their applications and share data.

  5. BPEL: Versions and History • Descends from IBMs WSFL and Microsofts XLANG,combination called BPEL4WS • BPEL4WS appeared in 1.0 and 1.0 – without being standardized yet • WS-BPEL 2.0 Spec by OASIS in September 2004 • BPEL 2.0 standardized in April 2007 • In June 2007 BPEL4People published by Active Endpoints, Adobe, BEA, IBM, Oracle and SAP

  6. Distinction BPEL & XPDL • XPDL = XML Process Definition Language • WfMC = Workflow Management Coalition • XPDL 1.0 ratified by WfMC in 2002 • XPDL defines a XML schema for specifying the declarative part of workflow • It‘s focus is less in Process execution but in Process interchange between differnet products (Modelling tools, Workflow engines etc.)

  7. Extensions Core-BPEL SubProcesses HumanInteractions BPEL Standardization Model according to Prof. Frank Leymann

  8. xmlns • XML namespaces define uniquely named elements and attributes in an XML instance • XML namespace does not require that its vocabulary be defined, though it is fairly common practice to place either a Document Type Definition (DTD) or an XML Schema IBM Modeler: xmlns:bpws=http://schemas.xmlsoap.org/ws/2004/03/business-process/ MicroTool objectiF xmlns="http://docs.oasis-open.org/wsbpel/2.0/process/executable" jCOM1 jPASS! xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"

  9. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  10. Elements of BPEL • Basic Activities • Structured Activities • Partner Links • Scopes • Variables

  11. Elements of BPELBasic and Stuctured Activities • BPEL activities perform the process logic • activities are divided into 2 classes: basic and structured • basic activities describe elemental steps of the process behavior • structured activities encode control-flow logic

  12. Elements of BPELBasic Activities • <invoke> – calls Web Services <invoke name="checkSolvency" partnerLink="bank" portType="check" operation="checkSolvency" inputVariable="customer" outputVariable="sol"/> • <receive>- waits for message • <reply> - replies to a message

  13. Elements of BPELBasic Activities • <assign> - updates the values of variables <assign> <copy> <from variable=“a”/> <to variable=“b”/> </copy> </assign> • <throw> - generates a fault from inside the business process • <wait> - waits for a given time of period

  14. Elements of BPELStuctured Activities • <sequence> - sequential execution • <flow> - concurrent execution sequence flow

  15. Elements of BPELStructured Activities • <pick> - waits for the occurrence of exactly one event • <if> - conditional behavior • <repeatUntil> - repeated execution of a contained activity

  16. Elements of BPELPartnerLinks • <partnerLink> - describes comunication partners • the process is one of the partners, and another service is the other partner • partnerLink defines the role that the process plays and the role that the partner service plays in the particular exchange

  17. Elements of BPELScopes • <scope> - provides the context which influences the execution behavior of its enclosed activities • this behavioral context includes activities like: variables or partner links • contexts provided by <scope> activities can be nested hierarchically

  18. Elements of BPELVariables • <variable> - means for holding messages that constitute a part of the state of a business process • visible only in the scope in which it is defined <variables> <variable name=“a”/> <variable name=“b”/> </variables>

  19. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  20. Betrachtung der Gesamtprojektkosten GP* ≥ 50.000 € oder FL* ≥ 10.000 € Freigabe des Anteils der Auftragsklärung ja Vorschlag priorisieren Vorschlag prüfen nein Status 5 „Projekt-Budget genehmigt“ The original business process

  21. Step 1 Step 2 Step 3

  22. Result Step 4

  23. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  24. IT Forum IT Forum Projekt finanziell genehmigen Entscheidung vorbereiten Generate BPEL code in ARIS • ARIS uses ePC notation • impossible to generate BPEL Codedirectly in ARIS • vendor specific solutions avaiblee.g. Oracle BPA Suite, ARIS BPEL IDS Scheer statement* • “ePC is for functional process modelling only • BPMN if process are to be implementedor automated“ *Email: IDS Scheer December 2007 Gesamtkosten betrachten GP >= 50.000 o. FL >=10.000 GP <= 50.000 o. FL <=10.000 Status auf 3 setzen Status auf 5 setzen Status 3 Status 5

  25. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  26. Generate BPEL code in IBM Modeler

  27. Generate BPEL code in IBM Modeler • select project to be exported • “WebSphere Process Server“ as type

  28. Generate BPEL code in IBM Modeler • Modeler creates one file with BPEL code • additionally several files as proprietary extension for better import into WID

  29. Generate BPEL code in IBM Modeler

  30. Generate BPEL code in IBM Modeler • one incoming message • two tasks • one decision • two outgoing paths

  31. Generate BPEL code in IBM Modeler

  32. Generate BPEL code in IBM Modeler

  33. Importing IBM Modeller Process in WID

  34. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  35. 1 BPEL – what is it? | Kuno Grün Elements of BPEL| Erwin Buda 2 Generate BPEL code in objectiF| Ulrike Stumvoll 3 4 Generate BPEL code in ARIS| Alexej Jukkert 5 Generate BPEL code in IBM Modeler| Alexej Jukkert 6 Generate BPEL code in jPASS!| Michael Reisp 7 Résumé | Simon Isenberg

  36. Résuméa BPM hourglass According to: http://www.bpmn.org/Documents/OMG%20BPMN%20Tutorial.pdf

  37. Extensions Core-BPEL SubProcesses HumanInteractions Résuméstatus quo • no 100% match between BPEL 2.X and BPMN 2.0and vice versa (e.g. because of deficits of human interactions) according to Prof. Frank Leymann

  38. RésuméToday‘s situation • no 100% match between BPEL 2.X and BPMN 2.0 and vice versa (e.g. because of deficits of human interactions) • a generic BPEL-export is hardly possible • a lot of reworking in the BPEL-platform in order to get the process ‚running‘...

  39. RésuméOn the horizon • OMG responsible for standardization of BPEL as well as of BPMN • BPEL 3.0 expected to be released Q3/2008 • better match between BPMN 2.0 and BPEL 3.0 • easier BPEL export/imports with less reworking

  40. Thank you for your attention. Vielen Dank für Ihre Aufmerksamkeit.

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