IBM and SAP AG Release WS-BPEL Extension for Sub-Processes (BPEL-SPE)
A technical white paper "WS-BPEL Extension for Sub-Processes: BPEL-SPE" published by IBM and SAP proposes an extension to WS-BPEL that allows for the definition of sub-processes that can be reused within the same or across multiple WS-BPEL processes. A formal language specification defining the precise syntax and semantics of the BPEL-SPE extension is planned for later release. WS-BPEL v2.0 defines a model for web services composition through aggregation.
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