I almost always gravitate toward attempting to use diagrams (creatively, and iteratively) for things like this. For change management especially there are lots of things to address, interconnected. The PTC diagrams are extensive but so far haven't "gelled" the understanding for me.
For change management, have to lay out (at least):
- the data (e.g. drawing, related models, possibly WTParts at Rev B (Affected Objects, at Released state)
- the data ((e.g. drawing, related models, possibly WTParts at Rev C (Resulting Objects, first at In Work state, then later at Released state)
- each of the change objects (Request, Notice, Task) and their states, and relationships to affected and resulting
- each of the change object workflow processes, and where they effect state changes to the change object and data
- each of the change object team instances, their Roles and principals
- more but you get the idea
I've moved toward always laying out vs. time what is happening to the product data (e.g. Rev B Released >> Rev C In Work, then Released)
Then and only then, laying the change object states next these
Then and only then, laying out the change object workflow processes