Pair drafts with briefs, open review tasks, pass on decisions. Every one is ready to run, and you can adjust it in plain language.
Create a linked review for each revised manual and prior sign-off.
Your document review and approval process has a clear next step: a linked task with the changes and prior decision for the revised manual.
Tie each revised spec to the version that received sign-off.
See which specification changes need another decision before production continues, with a linked review for your product manager and a visible reapproval flag.