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| Criterion |  Innovation Double Diamond |  Operations A3 Problem Solving |  Operations Gemba Walk |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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 there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | Wochen bis Monate | 45-90 min | 30-120 min | 2-8 h |
Participantsdifferent | 3-12 | 2-5 | 2-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | ProcessDivergenceInnovation | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | Problem solvingRoot causeDecisionOperations |