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| Criterion |  Product Strategy GIST Planning |  UX Research Empathy Mapping |  Operations 8D Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | GIST Planning helps clarify target groups, value, goals, and priorities. It links customer value, product logic, and decision priorities, and captures the result as goals, an idea bank, and a step-project list. | When a lot is assumed about a target group but little is seen jointly, empathy mapping makes knowledge and gaps directly comparable. The picture also shows which assumptions hold up and where evidence is missing. | 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. | 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 | Low | High | Low |
Timedifferent | Wochen bis Monate je Goal | 30–60 min | 1-6 Wochen | 15-30 min |
Participantsdifferent | 3-10 | 4-8 | 4-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Goals, Idea bank, Step-project list, Tasks, Learning reports | Empathy Map, Assumptions List, Research Gaps | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | RoadmapOutcomesPlanningExperiments | SynthesisQualitativeWorkshop | QualityProblem solvingRoot cause | Root causeIncidentLeanProblem solving |