[liampulles]

So for me, the question is: are these two things intrinsically the same or coincidentally the same? If it is intrinsically the same, then an abstraction/centralization of logic is correct. If they are coincidentally the same, then its better to keep them separate.

Its premature if I don't know the answer to that question with my current information, which is a common scenario for me when I'm initially writing a new set of usecases.

If I get a 3rd copy of a thing, then its likely going to become an abstraction (and I'll probably have better understanding of the thing at the time to do that abstraction). If I don't get a 3rd copy of that thing, then its probably fine for the thing to be copied in 2 places, regardless of what the answer to my question is.

[ted_dunning]

On the other hand, when your abstraction has more configuration options than methods, it is a sign that (years ago) it really wasn't an abstract at all.

[liampulles]

Totally agree.