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| Criterion |  Operations Getting Things Done |  Operations 8D Problem Solving |  Engineering Hypothesis-Driven Troubleshooting |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 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 | High | Medium | Low |
Timedifferent | 1-2 h Setup, laufend | 1-6 Wochen | 30-240 min | 15-30 min |
Participantsdifferent | 1 | 4-10 | 1-6 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Action Lists, Project List, Review Routine | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Root cause notes, Countermeasures |
Tagsno overlap | ProductivityPlanningTasksExecution | QualityProblem solvingRoot cause | TroubleshootingProblem solvingDiagnosis | Root causeIncidentLeanProblem solving |