Business rules are one of the key components in an enterprise architecture. And yet for many EA teams, business rules hardly get a mention!

When you look at TOGAF 9.1, business rules are mentioned in passing during a brief discussion of activity models in a section on business modeling [Section 8.2.3]. TOGAF simply says that: “Activity models can be annotated with explicit statements of business rules, which represent relationships among the ICOMs. For example, a business rule can specify who can do what under specified conditions, the combination of inputs and controls needed, and the resulting outputs.”

ArchiMate doesn’t fare any better: business rules are not part of the current version of ArchiMate. And rules cannot be found in any of the cells of the Zachman framework.

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