Appendix A. Role of abstractions in domain modeling
You should treat this appendix as a prelude to the entire discussion on DSLs. A DSL is nothing but a layer of abstraction over an underlying implementation model. The implementation model is nothing but an abstraction on top of the problem domain model, using the technology platform of the solution domain. Unless you get it right, your domain model won’t be at the correct level of abstraction, and the linguistic representation of it in the DSL won’t be either. Let’s see how you can make your abstractions shine.
A.1. Qualities of well-designed abstractions
This section focuses on the qualities of well-designed abstractions. I’ll use the fields of software engineering and program design as ...
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