View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  UX Research Card Sorting |  Decision Making Constraint Analysis |  Decision Making Pre-Mortem |  Engineering Failure Scenario Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | 20-45 min | 30-90 min | 20–45 min | 1-3 h |
Participantsdifferent | Based on research question | 2-8 | Small cross-functional group | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | Information architectureNavigationStructure | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning | FailureResilienceRisk |