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| Criterion |  Engineering Fault Isolation |  UX Design Design Studio |  Engineering Hypothesis-Driven Troubleshooting |  Facilitation 1-2-4-All |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | 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 systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-180 min | 1-3 h | 30-240 min | 10-20 min |
Participantsdifferent | 1-6 | 3-8 | 1-6 | 4-100+ |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Sketches, Concept Directions, Design Decisions | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Idea List, Shared Insights, Emergent Themes |
Tagsno overlap | TroubleshootingDiagnosisEngineering | SketchingCollaborationIdeation | TroubleshootingProblem solvingDiagnosis | FacilitationInclusionIdeation |