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| Criterion |  Operations 5 Whys |  Operations Kepner-Tregoe |  Agile Mad Sad Glad |  Operations Learning Review |
|---|---|---|---|---|
Purposedifferent | 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. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | When a team's or workshop's mood needs to become readable, it structures emotional signals with little setup. It makes strain, relief, and sources of energy tangible. | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 15-30 min | 2-8 h | 30-60 min | 1-3 h |
Participantsdifferent | 2-6 | 2-8 | 3-10 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Root cause notes, Countermeasures | Problem Analysis, Decision Analysis, Risk Plan | Emotion Board, Themes, Action Items | Learning Review Notes, System Factors, Improvement Actions |
Tagsno overlap | Root causeIncidentLeanProblem solving | Problem solvingRoot causeDecisionOperations | RetrospectiveTeamReflection | LearningRetrospectiveIncidentOperations |