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Domain-Driven Design: Tackling Complexity in the Heart of Software by Eric Evans

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Nine. Making Implicit Concepts Explicit

Deep modeling sounds great, but how do you actually do it? A deep model has power because it contains the central concepts and abstractions that can succinctly and flexibly express essential knowledge of the users’ activities, their problems, and their solutions. The first step is to somehow represent the essential concepts of the domain in the model. Refinement comes later, after successive iterations of knowledge crunching and refactoring. But this process really gets into gear when an important concept is recognized and made explicit in the model and design.

Many transformations of domain models and the corresponding code happen when developers recognize a concept that has been hinted at in discussion ...

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