(apologies for participating in a very old thread, but if this has come back to life...)
The simplest change control process in a Quality System "requires" only two reviewers:
- The person(s) responsible for the area(s) affected by the change
- An independent (quality) reviewer
I can explain the responsibilities of each, but let's set those aside.
Ideally, change control is not engaged until the change is ready to be made. If change control is engaged "too soon", then the roster of people under the first bullet cannot be known. No checklist of approvers will really help (construct a good change) so early in a possible change. If changes have to be pre-approved
prior to doing any meaningful work on the change... a checklist might help
scope the eventual change, but you would still have to revisit it at the time the change is to be reviewed and approved.
When it comes time to apply change control, the approvers should be well known based on the areas impacted by the
content of change... sometimes areas are impacted by a change but are neutral on the content. In my experience: approver checklists get longer each time someone makes a change and forgets to consult with a potentially impacted department. "Always fight the last battle" as the saying goes.