Class Construction
encapsulation
functionality/methods
properties
consistency
architectural
Presentation Layer
Logic Layer
Persistence Layer
functionality/methods
properties
architectural
In the context of an n-tier program that the class doesn't extend beyond 2 tiers/layers, unless that is what it is responsible for. As in an "interface" class.Presentation LayerLogic LayerPersistence Layer
Presentation Layer
Logic Layer
Persistence Layer