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| Criterion |  Architecture Quality Attribute Workshop |  Operations Kepner-Tregoe |  UX Research Affinity Diagramming |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | A Quality Attribute Workshop translates quality requirements into concrete scenarios and architecture impulses. The method brings product, engineering, and operations to the same view of desired properties. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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 | High | Low | Low |
Timedifferent | 2-4 h | 2-8 h | 45–90 min | 15-30 min |
Participantsdifferent | 5-15 | 2-8 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Quality Scenarios, Priority List, Architecture Concerns | Problem Analysis, Decision Analysis, Risk Plan | Theme clusters, Insight statements, Opportunity areas | Root cause notes, Countermeasures |
Tagsno overlap | RequirementsArchitectureWorkshop | Problem solvingRoot causeDecisionOperations | SynthesisQualitativeRoot cause | Root causeIncidentLeanProblem solving |