BPEL History

BPEL4WS 1.0 (7/2002)
Original proposal from BEA, IBM, Microsoft
Combined ideas from IBM’s WSFL and Microsoft’s XLANG

BPEL4WS 1.1 (5/2003)
Revised proposal submitted to OASIS
With additional contributions from SAP and Siebel

WS-BPEL 2.0 (6/2007)
Formalization of 1.1 capabilities
OASIS formally adopted standard

WS-BPEL 2.0 and beyond (10/2007)
Additional proposals on the table
Vendors beginning to ship products conforming to standards