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| Criterion |  Operations Gemba Walk |  Systems Thinking Evaporating Cloud |  Systems Thinking Future Reality Tree |  Product Strategy Lean Canvas |
|---|---|---|---|---|
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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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. | 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. |
Complexitydifferent | Low | Medium | High | Medium |
Timedifferent | 30-120 min | 60-120 min | 2-4 h | 45-90 min |
Participantsdifferent | 2-6 | 2-8 | 3-8 | 1-6 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Lean Canvas, Core Assumptions, Experiment Backlog |
Tagsno overlap | LeanObservationProcessOperations | Theory of ConstraintsAssumptionsSystems thinking | Theory of ConstraintsSystems thinkingChange | StartupLeanAssumptionsBusiness model |