Service virtualization

SOA promotes loose coupling of components in an attempt to break the dependency and impact of change. Therefore, we should apply this principle of loose coupling within the service design of our process architecture. Services and components of services should not be bound directly to each other. All services should be virtualized to allow routing to the physical service to be changed at runtime. Any service endpoint changes should only result in a small configuration change for its consumer rather than any disruptive redeployment. All public services should be deployed to the service bus to facilitate the mediation of messages between the consumer and the provider. The service bus can also allow the same service to support diverse protocols that a consumer service may require. This virtualization should never incorporate any business logic but should have knowledge of the different versions of services that can satisfy the requests. It can also perform the role of...