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IBM, SOA and Business Rules

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Well it seems that IBM believes in business rules too. I was reading SOMA: A method for developing service-oriented solutions which I found thanks to Eric Roch’s post on IBM’s SOA Methodology anda couple of things struck me:

  • Business rules get called out explicitly both in the meta model Eric shows and in the overall flow. Personally I would have liked to see Decision called out but Business Rules and Policies are a good start.
  • Rule services (what I call Decision Services) get a mention as a design artifact and a way to collect rules into something implementable
  • A rule engine appears in some of the implementation diagrams (like this one)
  • An obvious Decision Services (Validate Payment) shows up in the worked example

Excellent.

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