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| Criterion |  Operations Process Mapping |  Operations Standard Work Analysis |  Operations Root Cause Analysis |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 1-3 h | 1-3 h | 1-4 h | 15-30 min |
Participantsdifferent | 3-10 | 2-6 | 3-8 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | ProcessOperationsImprovement | LeanProcessQuality | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving |