Why should I isolate my domain entities from my presentation layer?

Question

One part of domain-driven design that there doesn\'t seem to be a lot of detail on, is how and why you should isolate your domain model from your interface. I\'m trying to c

Answer 1

The only sensible reason for adding additional mapping between generalized and domain specific semantics is that you have (access to) an existing body of code (and tools) that are based on a generalized (but mappable) semantics distinct from your domain semantics.

Domain driven designs work best when used in conjunction with an orthogonal set of functional domain frameworks (such as ORM, GUI, Workflow, etc.). Always remember that it is only in the outer layer adjacencies that domain semantics need to be exposed. Typically this is the front end (GUI) and persistent back-end (RDBM,ORM). Any effectively designed intervening layers can and should be domain invariant.