MID and Process Planning- How do you manage Casting molds

To make a parallel with construction and Manufacturing, the formwork is pretty to similar to casting molds. How in the MID you define this temporary aspect, Where do I place the Mold in the MID Structure?. This is the first part of a question. Second, how do we deal with molds in the in the Process Planning, install the mold, inject the matter then remove the mold. Can we assume that molds are resources?

Thanks for your insight.