Two. Communication and the Use of Language
A domain model can be the core of a common language for a software project. The model is a set of concepts built up in the heads of people on the project, with terms and relationships that reflect domain insight. These terms and interrelationships provide the semantics of a language that is tailored to the domain while being precise enough for technical development. This is a crucial cord that weaves the model into development activity and binds it with the code.
This model-based communication is not limited to diagrams in Unified Modeling Language (UML). To make most effective use of a model, it needs to pervade every medium of communication. It increases the utility of written text documents, as well ...
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