These are the questions Compass asks for this practice, and the levels it scores you against.
Documenting what each critical machine is designed to do.
Have you documented what each critical machine is designed to do (its functions)?
Level 1 → 5World class at level 4
- No formal documentation of machine functions
- General understanding — not written down
- Basic operational description exists
- Formal function list per machine used in maintenance planningWorld class
- Machine functions documented in MFMEA with performance standards
Systematically listing how each machine function can fail.
Have you systematically listed what can go wrong with this machine (failure modes)?
Level 1 → 5World class at level 4
- No formal failure mode list
- Informal knowledge held by experienced techs
- Historical failure records exist but not structured as failure modes
- Failure modes documented for major systems of the machineWorld class
- Comprehensive MFMEA with failure modes for all functions
Severity × Occurrence × Detection scoring per failure mode.
Do you assess the Severity, Occurrence, and Detection (SOD) of each failure mode?
Level 1 → 5World class at level 4
- No formal risk assessment
- Informal severity ranking by experience
- Basic criticality rating (high/medium/low) for some failures
- SOD scoring and RPN calculated for significant failure modesWorld class
- Full RPN matrix reviewed and updated after every significant failure
Owned, dated corrective actions for every high-RPN failure mode.
Do high-risk failure modes have assigned corrective actions with owners and due dates?
Level 1 → 5World class at level 4
- No corrective action tracking
- Actions discussed but not formally tracked
- Action list maintained in a spreadsheet
- Actions tracked in CMMS or project tool with owners and datesWorld class
- Actions tracked, verified, and feed back into updated MFMEA