A Formalized Approach
Our system is more formal and less subjective.
We issue a Document Notification form (for updated specifications or work instructions) that must be signed by operators affected by the document change. (see blank form attached)
There is also a Document Distribution form that identifies what department manuals the document needs to be/ and was posted to, as well as what staff are responsible to review for their affected areas. (I'll follow with blank form as only one attachment can be selected).
I used to have to write these out by hand (for each shift for each department affected), but got smart and linked both (along with associate listings) to my database. So now on one screen I can enter the updated document and print out notifications which are based upon selections made for what departments are affected.
I simply go to the last record for the same document then:
1. Copy the record, 2. Mark the old revision as 'obsolete' using a checkbox, 3. Go to new record & paste information (saves a bunch of keying) then update with DCR #/Rev/and Date, 4. Press the 'Print notification' button and the updated MDCL for the master manual that is the only one to show the Rev level (department manuals have list, which is updated when a document is made obsolete or if a new one is added - no change for update), 5. Then I have only to make copies, distribute notification forms to supervisors and post to manuals.
It sounds like a lot, but really it takes very little time.