 Business Process  WS-BPEL  Case Study ◦ PI-Kalkulus????????? ◦ Forklaring af WS-BPEL elementer  WS-BPEL byder på mere 1

 Business Process  Business Process Execution Language (BPEL) ◦ Beskriver en Business proces ◦ Definerer interaktioner med Web Services  Executable Process ◦ Præcis beskrivelse ◦ Alle detaljer  Abstract Process ◦ Delvist specificeret proces ◦ Kan ikke eksekveres ◦ Proces skabelon 2

 Revision af BPEL4WS  Web Service – Business Process Execution Language  Formel beskrivelse af BP og BP Protokoller  XML syntaks ◦ Human readable  Benytter ◦ XML Schema ◦ Xpath expressions 3

 Travel Planner ◦ Tjek hotel ◦ Tjek billeje ◦ Tjek fly ◦ Book fly 4

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 Partner Links  Variables  Sequence  Assign  Flow  Metoder ◦ Receive ◦ Reply ◦ Invoke 6

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 Sequence ◦ if-else ◦ while ◦ repeatUntil ◦ forEach  Scope ◦ Exception Handling ◦ Event Handling  onMessage  onAlarm 11