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| Criterion |  Decision Making Constraint Analysis |  Decision Making Pre-Mortem |  UX Research Card Sorting |  Engineering Failure Scenario Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 30-90 min | 20–45 min | 20-45 min | 1-3 h |
Participantsdifferent | 2-8 | Small cross-functional group | Based on research question | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log | Content groups, Label set, IA hypotheses | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning | Information architectureNavigationStructure | FailureResilienceRisk |