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| Criterion |  Product Strategy Lean Canvas |  Operations Gemba Walk |  Systems Thinking Future Reality Tree |  Systems Thinking Evaporating Cloud |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 45-90 min | 30-120 min | 2-4 h | 60-120 min |
Participantsdifferent | 1-6 | 2-6 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Observation Notes, Improvement Ideas | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments |
Tagsno overlap | StartupLeanAssumptionsBusiness model | LeanObservationProcessOperations | Theory of ConstraintsSystems thinkingChange | Theory of ConstraintsAssumptionsSystems thinking |