Best practices for creating libraries that use .NET namespaces

Question

Is it bad practice to write a library that defines an interface dependent on another library?

I know tight coupling is bad, but does this still apply when using .NET cla

Answer 1

With all of my libraries, I return objects that depend only on things in the library.

I would ask myself why I was writing a library that would depend upon another namespace that was not implicit. It seems to go against the whole "Encapsulation" concept.

So just by going off of my own reasoning and knowledge of OOP, I would say you are on the right track with returning your own non-dependent object.