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| Criterion |  Innovation Double Diamond |  Operations Kepner-Tregoe |  Innovation TRIZ |  Operations A3 Problem Solving |
|---|---|---|---|---|
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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | 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 | High | High | Medium |
Timedifferent | Wochen bis Monate | 2-8 h | 1-4 h | 45-90 min |
Participantsdifferent | 3-12 | 2-8 | 2-8 | 2-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Problem Analysis, Decision Analysis, Risk Plan | Contradiction Statement, Inventive Principles, Solution Concepts | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ProcessDivergenceInnovation | Problem solvingRoot causeDecisionOperations | InnovationProblem solvingContradictionsCreativity | LeanProblem solvingCoachingOperations |