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| Criterion |  Operations Ivy Lee Method |  Systems Thinking Evaporating Cloud |  Decision Making Assumption Surfacing |  Decision Making Risk Matrix |
|---|---|---|---|---|
Purposedifferent | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 5-10 min daily | 60-120 min | 45-90 min | 30-60 min |
Participantsdifferent | 1 | 2-8 | 2-8 | 3-10 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Daily Priority List, Completion Notes | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Assumption List, Critical Assumptions, Learning Plan | Risk Matrix, Top Risk List |
Tagsno overlap | PrioritizationProductivityExecution | Theory of ConstraintsAssumptionsSystems thinking | AssumptionsRiskDecisionDiscovery | RiskDecisionPrioritizationAssessment |