Paper cup point-of-use document verification tests whether the people doing the work can access and recognize the current instruction. A master list may be correct while a printed drawing, inspection sheet or setup note beside the machine remains obsolete.
This guide supports document-control audits on the production floor. It does not determine document approval authority or retention periods.

Decision worksheet
| Control point | Evidence to retain | Decision status |
|---|---|---|
| Select risk-based work points | Use the master document list to choose current required items and revisions | Verified, held or escalated |
| Compare displayed and master revisions | Confirm electronic links open the intended controlled file rather than a downloaded copy | Verified, held or escalated |
| Check accessibility and legibility | Record unavailable permissions, damaged pages or language barriers | Verified, held or escalated |
| Confirm user understanding | Link briefing or training evidence to the actual changed content | Verified, held or escalated |
| Close findings at the location | Record each location checked and any product impact review | Verified, held or escalated |
Select risk-based work points
Begin with the requirement and evidence needed for the decision. Map receiving, forming, inspection, packing and warehouse locations where documents drive decisions. Make the instruction specific enough that two trained people would reach the same conclusion. Use the master document list to choose current required items and revisions. Keep supporting photographs, files or samples linked to their source and revision.
Include informal boards, folders and saved local files where obsolete copies may persist. Escalate differences according to risk, including product already moved to a later stage. Retain failed or incomplete evidence beside the final result so the sequence remains auditable and future investigations can reconstruct it.
Compare displayed and master revisions
Treat this activity as a controlled handoff. Read the document number, revision and approval status at the work point. Name the sender, receiver, item and acceptance condition, then confirm the receiving party can recognize the current status. Confirm electronic links open the intended controlled file rather than a downloaded copy. Reconcile changes made during the handoff and document who authorized them.
Remove or identify obsolete copies and assess product made under uncertain instructions. Segregate mismatched or missing items and prevent automatic system release. After correction, perform a direct check at the destination and record the time, quantity and final status before closing the handoff.
Check accessibility and legibility
The review should test both completeness and practical use. Observe whether users can retrieve the instruction during the actual task and whether images, tables and limits are readable. Check the current job and physical evidence first, then compare supporting records. Record unavailable permissions, damaged pages or language barriers. Use a defined sample or full check appropriate to the risk and explain any conversion between cups, stacks, bags, cartons or pallets.
Do not mark access as satisfactory because a supervisor can retrieve a file elsewhere. Investigate unexplained differences rather than forcing a balance. Assign corrective work, confirm its result at the process location and preserve approval with the batch, shipment or event record.
Confirm user understanding
Ask affected users to locate the requirement that controls the current job and explain the recent revision. State the responsible role, applicable product and exact decision point before work begins. Use approved order and quality records rather than an informal message. Link briefing or training evidence to the actual changed content. Capture actual identifiers, quantities, dates and observations while the activity occurs.
Escalate when signatures exist but the work method still follows an old instruction. Protect any uncertain product from normal movement and assign the unresolved question to an authorized owner. Close the step only after physical items, system status and written evidence agree.
Close findings at the location
Map the control to the production or logistics route. Replace documents through the controlled issue process and verify the corrected version in use. Identify where information enters the process and where another person depends on it. Record each location checked and any product impact review. Compare the source record with labels, containers or equipment at the work point, and preserve the original value when a correction is needed.
Reopen the finding if local copies return or the electronic shortcut again points to an obsolete file. Stop release when identity or scope cannot be defended. Record the affected boundary, immediate action and approval needed, then verify the corrected condition instead of accepting a verbal confirmation.
Related equipment and next checks
Review the paper cup production line and the related guide to quality data audit-trail guide. The Engineering Notes archive connects these checks with wider machine planning.
Frequently asked questions
Is a correct master list enough?
No; current documents must also be accessible and used at each relevant work point.
Can obsolete documents remain for reference?
Only when clearly identified and controlled so they cannot guide production or inspection.
How should electronic files be checked?
Open the actual link or terminal used by the operator and verify revision and access.
What if product was made using an old instruction?
Contain the defined scope and perform a documented product-impact review.
Review the evidence with HANNAI
Send the master list, work-point documents and recent revision history. HANNAI can help identify equipment locations where current instructions are needed.