Chapter 6

Business Rule Models

Business rules are the fourth and last business modeling discipline described in this book. Business rules shape the behavior of a business and guide the behavior of the business’s employees. Business rules explain what is allowed and what is not allowed. A business rule model also explains the consequences of violation: what happens when a rule is violated. This chapter describes business rule models.

Sometimes customers at a Mykonos restaurant leave before they finish their dinner. Perhaps there is an emergency at home, and they must leave to tend to the emergency. Or someone in the party became ill while they’re at the restaurant. Or they were disgruntled, unhappy with the wait for their dinner, and leave before ...

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