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| Criterion |  Engineering Failure Scenario Analysis |  UX Research User Interviews |  Decision Making Constraint Analysis |  Decision Making Assumption Surfacing |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | When teams derive needs only from assumptions and real motives are missing, user interviews give direct access to behavior and meaning. Conversations from the target group's everyday life make patterns, tensions, and open questions solidly visible. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 30–60 min per interview | 30-90 min | 45-90 min |
Participantsdifferent | 3-8 | 1 participant per interview | 2-8 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Interview Notes, Themes, Insight Summary | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Assumption List, Critical Assumptions, Learning Plan |
Tagsno overlap | FailureResilienceRisk | QualitativeResearchCustomerDiscovery | ConstraintsDecisionPlanningOptions | AssumptionsRiskDecisionDiscovery |