When
we understand this difference, we have taken the first step in recognizing EAI as a
separate stream, in fact a specialized stream which requires specific skill sets to look
at systems and services from an integration point of view.
We will start thinking in terms of connectors, brokers, or message routers which
have a very specific role and responsibility in the integration domain. These are
integration blocks which when combined together in different ways will give out
new styles or patterns of message exchange. Hence, EAI patterns are nuggets of
advice made out of aggregating basic MEP elements to solve frequently recurring
integration problems. For every practical purpose these are similar to design patterns
and we can look at EAI patterns as design patterns for solving integration problems.
EAI Patterns Book and Site
In writing a chapter discussing EAI patterns, I have to invariably point to the
great book on EAI patterns by Gregor Hohpe and Bobby Woolf. In fact, this
book is a collection of about 65 patterns, all providing means to solve the day to
day integration problems.
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