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| Criterion | ![]() Engineering Fault Isolation | ![]() Business Strategy 5-Minuten VC-Check | ![]() Product Discovery Riskiest Assumption Test | ![]() Product Discovery Learning Card |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | The 5-Minute VC Check clarifies opportunities and strategic options at the earliest idea stage. It compares problem quality, customer willingness to pay, alternatives, differentiation, and market potential, and captures the result as a VC-check note, go/sharpen/park decision, and risk list. | 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. | The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-180 min | 5-15 min | 1-2 Wochen pro Iteration | 25-40 min |
Participantsdifferent | 1-6 | 1-5 | 2-6 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Prioritized Assumption List, Test Plan, Results Report | Learning Card with evidence and next action |
Tagsno overlap | TroubleshootingDiagnosisEngineering | StartupValidationCompetition | ExperimentsValidationDiscoveryAssumptions | ExperimentsValidationDiscoveryLearning |



