ESB Architecture
ESB is a modular and component based architecture. It assumes that services are generally autonomous and availability of a service at a certain moment of time cannot be guaranteed. Therefore messages need to be routed consequently through the message bus for buffering (message queuing) to allow inspection and enhancement of content as well as filtering, correction and rerouting of message flow.
Read more about this topic: Enterprise Service Bus
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“It seems a fantastic paradox, but it is nevertheless a most important truth, that no architecture can be truly noble which is not imperfect.”
—John Ruskin (1819–1900)