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| Criterion |  Innovation Double Diamond |  Operations A3 Problem Solving |  Innovation Design Sprint |  Operations 5 Whys |
|---|---|---|---|---|
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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | Wochen bis Monate | 45-90 min | 4-5 Tage | 15-30 min |
Participantsdifferent | 3-12 | 2-5 | 5-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | A3 Report, Action Plan, Root Cause Analysis | Prototype, Test Findings, Decision Rationale | Root cause notes, Countermeasures |
Tagsno overlap | ProcessDivergenceInnovation | LeanProblem solvingCoachingOperations | Design sprintPrototypeValidationInnovation | Root causeIncidentLeanProblem solving |