How does WebSphere Enterprise Service Bus fit into SOA?
To help customers build and manage business processes, IBM introduced the Service Oriented Architecture (SOA) Foundation. The SOA Foundation is an integrated, open set of software, best practices, and patterns that provide what customer needs to get started with the SOA life cycle. Following is a diagram of SOA life cycle:
Figure 7. SOA life cycle
WebSphere Enterprise Service Bus is one of the software products in the SOA Foundation that support the deploy phrase of SOA life cycle. WebSphere Integration Developer is one of the software products that supports the assemble phrase.