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Selected:Card SortingFault Tree AnalysisLASR (Lightweight Approach for Software Reviews)Failure Mode and Effects Analysis
| Criterion |  UX Research Card Sorting |  Operations Fault Tree Analysis |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Failure Mode and Effects 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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | High | Medium | High |
Timedifferent | 20-45 min | 2-6 h | 3–4 h for initial assessment; preparation and deeper analysis additional | 2-6 h |
Participantsdifferent | Based on research question | 3-8 | 1 or a small team; particularly suitable for 3–4 people | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Content groups, Label set, IA hypotheses | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Information architectureNavigationStructure | RiskRoot causeSafety | ArchitectureQualityRiskAssessmentLean | RiskQualityOperationsRoot cause |