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Selected:PretotypingRoot Cause AnalysisARID (Active Reviews for Intermediate Designs)Root Cause Tree Analysis
| Criterion |  Product Discovery Pretotyping |  Operations Root Cause Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | Stunden bis wenige Tage | 1-4 h | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 h |
Participantsdifferent | 1-4 | 3-8 | Designers, developers as users, and facilitation | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | ValidationDemandMVP | Root causeProblem solvingQualityIncident | ArchitectureEngineeringFeedbackValidationTasks | Root causeTreeIncidentQuality |