The Web Service Mapping (WSM) file contains the XML-encoded instructions that enable the OpenEdge Adapter for Sonic ESB to process SOAP messages according to the needs of the OpenEdge application. A WSM file is created for each service using the OpenEdge Open Client Proxy Generator tool (ProxyGen). For more information on ProxyGen and how to create WSM files, see OpenEdge Development: Open Client Introduction and Programming.

In the process of installing an OpenEdge service in the Sonic ESB environment, the OpenEdge Adapter for Sonic ESB takes the WSM file as its primary input.