Making the Rules

Caminao's Ways


Rules can be seen as the glue holding together business, organization, and systems, and that may be a challenge for enterprise architects when changes are to be managed according to different concerns and different time-scales. Hence the importance of untangling rules upfront when requirements are captured and analysed.

Primary Taxonomy

As far as enterprise architecture is concerned, rules can be about:

  • Business and regulatory environments.
  • Enterprise objectives and organization.
  • Business processes and supporting systems.

That classification can be mapped to a logical one:

  • Rules set in business or regulatory environments are said to be deontic as they are to be met independently of enterprise governance. They must be enforced by symbolic representations if enterprise systems are to be aligned with environments.
  • Rules associated with objectives, organization, processes or systems are said to be alethic (aka modal) as they refer to possible, necessary or contingent conditions as defined by enterprise governance. They are to be directly applied to symbolic representations.

Whereas both are…

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