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| Criterion |  Operations A3 Problem Solving |  Operations Gemba Walk |  Innovation Contradiction Analysis |  Innovation Double Diamond |
|---|---|---|---|---|
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 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. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-90 min | 30-120 min | 60-120 min | Wochen bis Monate |
Participantsdifferent | 2-5 | 2-6 | 2-8 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Observation Notes, Improvement Ideas | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Problem Statement, Solution Options, Prototypes, Deliverables per Phase |
Tagsno overlap | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | ContradictionsInnovationProblem solving | ProcessDivergenceInnovation |