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| Criterion |  Operations Gemba Walk |  Innovation TRIZ |  Innovation Design Sprint |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Low | High | High | Low |
Timedifferent | 30-120 min | 1-4 h | 4-5 Tage | 15-30 min |
Participantsdifferent | 2-6 | 2-8 | 5-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Contradiction Statement, Inventive Principles, Solution Concepts | Prototype, Test Findings, Decision Rationale | Root cause notes, Countermeasures |
Tagsno overlap | LeanObservationProcessOperations | InnovationProblem solvingContradictionsCreativity | Design sprintPrototypeValidationInnovation | Root causeIncidentLeanProblem solving |