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The two worlds of SOA

Jack van Hoof

Wednesday, 02 July 2008

Looking from the business side, there is the composition of business activities into autonomous business functions. These functions offer services to each other and communicate - preferably - events based to obtain their autonomy. Such a business service could easily be outsourced without any disruption of the overall business process. Such a business service can also easily be delivered (shared) to different business contexts (internal or external). I call this the Service Oriented Enterprise. This has nothing to do with IT.

On the other hand there is the composition of application constructs. The top level of such a construct preferably maps with an autonomous business function. Current standards based technologies make it possible for IT to support events based interaction between the autonomous business functions, which in turn boosts the Service Oriented Enterprise.

The idea (or pattern, if you like) of autonomous business functions can be prolongated into the finer grained application constructs which may e.g. lead to autonomous entity services or deeper layers of granularity.

Jack van Hoof

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