Virtually every software developer in the world has heard of the ‘Model-View-Controller’ (MVC) Design Pattern, which is not entirely surprising given that it was “first introduced by Trygve Reenskaug, a Smalltalk developer at the Xerox Palo Alto Research Center in 1979.” Today, Oracle provides us with a nice representation of a 'Common MVC Implementation:'
Now, more than forty years later, and in the context of an emerging star in software integration — ‘Event-Driven Architecture’ — it seems high time for the next generation of MVC to be announced: the ‘Model-View-Broker’ (MVB) Pattern. Here is a reworked version of the earlier MVC Diagram, with key changes marked in yellow: