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| Criterion |  Operations A3 Problem Solving |  UX Research User Interviews |  Operations Kepner-Tregoe |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | 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 teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | 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. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 45-90 min | 30–60 min per interview | 2-8 h | 45-90 min |
Participantsdifferent | 2-5 | 1 participant per interview | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Interview Notes, Themes, Insight Summary | Problem Analysis, Decision Analysis, Risk Plan | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | LeanProblem solvingCoachingOperations | QualitativeResearchCustomerDiscovery | Problem solvingRoot causeDecisionOperations | AssumptionsRiskDecisionDiscovery |