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| Criterion | ![]() Operations A3 Problem Solving | ![]() Engineering Hypothesis-Driven Troubleshooting | ![]() Operations Kepner-Tregoe |
|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. |
Complexitydifferent | Medium | Medium | High |
Timedifferent | 45-90 min | 30-240 min | 2-8 h |
Participantsdifferent | 2-5 | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Problem Analysis, Decision Analysis, Risk Plan |
Tags1 shared | LeanProblem solvingCoachingOperations | TroubleshootingProblem solvingDiagnosis | Problem solvingRoot causeDecisionOperations |
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