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| Criterion |  Operations Ivy Lee Method |  Operations Getting Things Done |  Product Discovery Riskiest Assumption Test |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 5-10 min daily | 1-2 h Setup, laufend | 1-2 Wochen pro Iteration | 45-60 min |
Participantsdifferent | 1 | 1 | 2-6 | 2-8 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | Daily Priority List, Completion Notes | Action Lists, Project List, Review Routine | Prioritized Assumption List, Test Plan, Results Report | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | PrioritizationProductivityExecution | ProductivityPlanningTasksExecution | ExperimentsValidationDiscoveryAssumptions | AssumptionsRiskExperimentsValidation |