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| Criterion |  Operations 8D Problem Solving |  Innovation Design Charrette |  UX Design Design Studio |  Operations Root Cause Analysis |
|---|---|---|---|---|
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. | 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 several designs need to be quickly put in relation to each other, it makes ideas visible and comparable. It encourages early variants instead of long upfront debates. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1-6 Wochen | Halber Tag bis mehrere Tage | 1-3 h | 1-4 h |
Participantsdifferent | 4-10 | 10-50 | 3-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Sketches and Concepts, Consolidated Solution Sketch, Prioritized Direction | Sketches, Concept Directions, Design Decisions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | QualityProblem solvingRoot cause | BrainstormingWorkshopCollaborationIdeation | SketchingCollaborationIdeation | Root causeProblem solvingQualityIncident |