Process changed; wall work instructions still last year's. Work orders upgraded; hands follow yellowed steps. SOPs must follow work-order versions—what operators see at start is the valid document for that order. Wall copies may compare—not authorize.
Yellow is not vintage charm. It is version drift.
Start Work Trusts Order Version
Process changes publish new versions; old SOPs auto-expire. Terminals or printouts carry version with order. First article per new SOP; supervisors call out changes. Wall copies recycled on schedule.
- No private "better old steps" on the floor.
- Temporary process via controlled deviation with close date.
- Quality trace records SOP version used.

Documents Follow Orders, Not Walls
The XYN digital intelligence system binds SOP versions to work orders—operators pull current at start. Smart manufacturing work instructions are living documents—not décor. Décor yellows; living documents update with each order.
Sample three in-process orders—compare wall and system version numbers. Mismatch—revoke wall authority before paperless push.
