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| Criterion |  Operations A3 Problem Solving |  Innovation Design Sprint |  UX Research Surveys |  Operations 5 Whys |
|---|---|---|---|---|
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 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. | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | 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 | High | Medium | Low |
Timedifferent | 45-90 min | 4-5 Tage | 3-14 Tage | 15-30 min |
Participantsdifferent | 2-5 | 5-8 | 50+ | 2-6 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Prototype, Test Findings, Decision Rationale | Survey Results, Charts, Segment Insights | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | Design sprintPrototypeValidationInnovation | QuantitativeResearchValidation | Root causeIncidentLeanProblem solving |