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| Criterion |  Operations Gemba Walk |  Innovation Rolestorming |  Innovation Brainstorming |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
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. | When a search for ideas stalls, switching roles helps people step outside their own perspective and activate new logics of action. The method reduces habit because contributions arise from a different stance. This brings unfamiliar, often fitting solution approaches into play. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 30-120 min | 30-60 min | 30-60 min | 30-60 min |
Participantsdifferent | 2-6 | 3-12 | 4-12 | 3-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Rollenkarten, Ideenpool pro Rolle, Konsolidierte Shortlist | Idea pool, Theme clusters, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | LeanObservationProcessOperations | BrainstormingIdeationCreativity | BrainstormingIdeationCreativityWorkshopDivergence | BrainstormingIdeationCreativityRisk |