Buying guide · control before features
Buy the lightest work-instruction control that closes the defect path.
If revision control fixes the problem, buy a library. If supervisors need to see this execution, add runs. Require proof only where the consequence justifies the friction.
Control ladder
Document. Follow. Prove—only when needed.
Start where the failure occurs instead of buying every control at once.
| Need | Buy | What changes |
|---|---|---|
| Wrong revision | Library | Release one current instruction; preserve revisions |
| Steps skipped | Pro runs | Record who ran which revision and what completed |
| Objective proof required | Selected evidence + hard gate | Chosen steps block sign-off until their required record exists |
| NC / CAPA-lite | Quality | Keep exceptions and follow-up controls beside the run |
Procedures prices are ours: Library $79, Pro $249, Quality $649 starting monthly. A walkthrough confirms seats and fit.