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| Criterion |  Engineering Kanban |  Delivery Cost of Delay |  Product Discovery Riskiest Assumption Test |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When work sits in too many parallel streams, throughput suffers and no one sees the bottlenecks. Kanban makes the flow of work visible and limits overload so a system becomes calmer and more predictable. | Helps clarify scope, order, and delivery flow in concrete terms. It makes work, constraints, and sequence manageable. The result is captured as a Cost of Delay table and prioritization sequence. | 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 demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | Ongoing | 90-180 min | 1-2 Wochen pro Iteration | 1-5 Tage |
Participantsdifferent | 2-12 | 3-8 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Kanban board, WIP policies, Flow metrics | CoD Table, Prioritization Sequence | Prioritized Assumption List, Test Plan, Results Report | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | FlowVisual managementDelivery | PrioritizationDeliveryEconomicsDecision | ExperimentsValidationDiscoveryAssumptions | ValidationExperimentsDemandDiscovery |