View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Change Analysis |  Decision Making Assumption Surfacing |  Operations Kepner-Tregoe |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | 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. | 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 45-120 min | 45-90 min | 2-8 h | 45-90 min |
Participantsdifferent | 2-6 | 2-8 | 2-8 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Assumption List, Critical Assumptions, Learning Plan | Problem Analysis, Decision Analysis, Risk Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | AssumptionsRiskDecisionDiscovery | Problem solvingRoot causeDecisionOperations | LeanProblem solvingCoachingOperations |