What pattern to follow to make application behave w.r.t. the meta-data supplied and which orchestration tool to use to generate meta-data?

Question

Hello. I would like my application to pick up meta-data from a store and use it during the runtime to emit desired behavior (as defined in the meta-data). Next, in order to generate this meta-data, I would like to build (or extend) an orchestration tool.

So first, it there a generic framework / pattern / guideline available (mine is .Net platform) that would run out of meta-data?

Second, is there an orchestration tool available that I can extend to fit my needs?