By designing systems in layers of interacting components, we can grow more and more complex systems. The internals of different components are irrelevant so long as the external interface is consistent.
We evolve them by improving the interfaces (see APIs deprecating functions/methods/messages) and by refactoring/rewriting the internals or implementation.
By designing systems in layers of interacting components, we can grow more and more complex systems. The internals of different components are irrelevant so long as the external interface is consistent.
We evolve them by improving the interfaces (see APIs deprecating functions/methods/messages) and by refactoring/rewriting the internals or implementation.