Dormancy is not a frowned upon thing in the system. Parts go dormant over the years naturally once they've ultimately fulfilled their purpose. Most parts will.

Forced fusion is the process where two parts have their 'consciousness' fused into one. They must settle on a singular identity, and depending on a Tool's observations, are given a role that suits their behavior. This is usually done between a stable part and an unstable part in an attempt to create a functional new one. Fusion is this process but unmonitored by Managers.

Forced dormancy is not a thing.