WS-Coordination (Web Services Coordination) is a proposed IT industry standard for how individual Web services can interact in order to accomplish an application task. WS-Coordination is one of a series of specifications from an industry group that includes IBM, Microsoft, and BEA Systems. The WS-Coordination interface defines a context within which coordination is to take place and the specific items of data that are to be exchanged in order for transactions to complete successfully as part of an overall business process defined in a Business Process Execution Language (BPEL) program. WS-Transaction is a companion specification for what will constitute the completion of a transaction.
The WS-Coordination specification is an activity of the Web Service Interoperability Organization (WS-I Organization) which is an industry-wide effort at standardizing how Web services are requested and delivered.