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| Criterion |  Operations 8D Problem Solving |  Facilitation 1-2-4-All |  Facilitation Mind Mapping |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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 many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | When a topic is still unclear and too many thoughts surface at once, Mind Mapping creates an open surface for ordering them. It makes connections, subtopics, and starting points visible without fixing them too early. | 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 | High | Low | Low | Low |
Timedifferent | 1-6 Wochen | 10-20 min | 15-45 min | 15-30 min |
Participantsdifferent | 4-10 | 4-100+ | 1-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Idea List, Shared Insights, Emergent Themes | Mind Map, Topic Clusters, Open Questions | Root cause notes, Countermeasures |
Tagsno overlap | QualityProblem solvingRoot cause | FacilitationInclusionIdeation | BrainstormingIdeasMappingStructureFacilitation | Root causeIncidentLeanProblem solving |