In April 2003, BEA Systems, IBM, Microsoft, SAP, and Siebel Systems submitted BPEL4WS 1.1 to OASIS for standardization via the Web Services BPEL Technical Committee.
În aprilie 2003, BEA Systems, IBM, Microsoft, SAP AG și Siebel Systems au transferat standardul BPEL4WS 1.1 OASIS prin intermediul Comitetului Tehnic BPEL Services Web Services.