Integration Layer

Provides a level of indirection between the consumer of functionality and its provider. A service consumer interacts with the service provider via the Integration Layer. Hence, each service interface is only exposed via the Integration Layer (e.g., ESB), never directly and point-to-point integration is done at the Integration Layer instead of consumers/requestors doing it themselves. Consumers and providers are decoupled; this decoupling allows integration of disparate systems into new solutions.