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| Criterion |  UX Design Design Studio |  Operations A3 Problem Solving |  Facilitation 1-2-4-All |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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 | Medium | Low | Low |
Timedifferent | 1-3 h | 45-90 min | 10-20 min | 15-30 min |
Participantsdifferent | 3-8 | 2-5 | 4-100+ | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Sketches, Concept Directions, Design Decisions | A3 Report, Action Plan, Root Cause Analysis | Idea List, Shared Insights, Emergent Themes | Root cause notes, Countermeasures |
Tagsno overlap | SketchingCollaborationIdeation | LeanProblem solvingCoachingOperations | FacilitationInclusionIdeation | Root causeIncidentLeanProblem solving |