WebSphere® Process Server is a business integration server that supports solutions based on service-oriented architecture (SOA). It uses Service Component Architecture (SCA) to present all business transactions in a service-oriented way in its runtime environment. IBM® Integration Bus can accept requests from WebSphere Process Server, and can also call service components on WebSphere Process Server.
WebSphere Process Server provides components that can use, or be used by, the services in IBM Integration Bus. This interoperability is based on SCA, and the SCA nodes provide the facilities that permit operation between the two products.
WebSphere Integration Developer is the development environment for WebSphere Process Server. It is the tool for building and deploying SOA-based integration solutions on WebSphere Process Server.