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Summary

Service-Oriented Architecture has been declared dead a couple of times in recent years, partly because it would not bring the level of decoupling organizations are striving for. Some of the criticism of SOA was probably justified. The conclusions, however, were quite over the top. Event-Driven Architecture (EDA), heralded as the successor to SOA, is actually a perfect complement to SOA.

For example, events are a much better way in many cases to “invoke” one-way services. Applications are not burdened with the responsibility to invoke specific services that need to be notified, creating clearly undesirable dependencies, but only need to take on the responsibility to broadcast the occurrence of events to a generic entity.


  

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