I didn't understand what this meant when I first read it. Now I see it's basically saying the same thing as I was trying to get across. The "underlying composit

I didn't understand what this meant when I first read it. Now I see it's basically saying the same thing as I was trying to get across. The "underlying composition of algebras" are the mechanisms and policies with the components being the mechanisms and the differing compositions being the policies chosen when used. If this same pattern can be used for all problems, then you're effectively skipping the step where in my case I would find a partially pre-composed set and make that the interface.