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The data model software architecture pattern is a data-oriented pattern where modules interact with each other via data instances (a.k.a. model points) with no direct dependencies between modules. For example, Figure 9-1 illustrates the difference between a literal architecture and a data model architecture. By implementing a data model, you introduce a layer of indirection that allows one module to change without requiring other modules to change.
Figure 9-1
Literal architecture vs. data model architecture
“The ...
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