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| Criterion |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |  Innovation Design Charrette |  Innovation Lotus Blossom |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | In a tightly timed design process with many participants, the method pools several lines of thinking in a short time. It brings parallel design energy without letting the discussion tip into endless coordination. This quickly produces solid directions for architecture or space. | When a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 1-3 h | 1-6 Wochen | Halber Tag bis mehrere Tage | 45-90 min |
Participantsdifferent | 2-8 | 4-10 | 10-50 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Sketches and Concepts, Consolidated Solution Sketch, Prioritized Direction | Lotus Diagram, Idea Themes, Shortlist |
Tagsno overlap | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause | BrainstormingWorkshopCollaborationIdeation | BrainstormingIdeationCreativityDivergenceWorkshop |