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| Criterion |  Product Discovery Pretotyping |  Operations Causal Factor Analysis |  Operations MORT Analysis |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Low | High | High | High |
Timedifferent | Stunden bis wenige Tage | 2-6 h | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 1-4 | 3-10 | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | ValidationDemandMVP | CausalityIncidentRoot causeTimeline | Root causeSafetySystemicIncident | Systems thinkingRoot causeConstraintsCausality |