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| Criterion |  Innovation Contradiction Analysis |  Engineering Hypothesis-Driven Troubleshooting |  Operations Gemba Walk |
|---|---|---|---|
Purposedifferent | When a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 60-120 min | 30-240 min | 30-120 min |
Participantsdifferent | 2-8 | 1-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Observation Notes, Improvement Ideas |
Tagsno overlap | ContradictionsInnovationProblem solving | TroubleshootingProblem solvingDiagnosis | LeanObservationProcessOperations |
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