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| Criterion |  Operations A3 Problem Solving |  Innovation Lotus Blossom |  Operations Gemba Walk |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
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 a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem. | 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 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. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 45-90 min | 45-90 min | 30-120 min | 30-60 min |
Participantsdifferent | 2-5 | 3-10 | 2-6 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Lotus Diagram, Idea Themes, Shortlist | Observation Notes, Improvement Ideas | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | LeanProblem solvingCoachingOperations | BrainstormingIdeationCreativityDivergenceWorkshop | LeanObservationProcessOperations | BrainstormingIdeationCreativityRisk |