View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Affinity DiagrammingRoot Cause Tree AnalysisA3 Problem SolvingFailure Mode and Effects Analysis
| Criterion |  UX Research Affinity Diagramming |  Operations Root Cause Tree Analysis |  Operations A3 Problem Solving |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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 | Medium | Medium | High |
Timedifferent | 45–90 min | 1-3 h | 45-90 min | 2-6 h |
Participantsdifferent | 3-10 | 2-8 | 2-5 | 3-10 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | Theme clusters, Insight statements, Opportunity areas | Cause Tree, Evidence Notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | SynthesisQualitativeRoot cause | Root causeTreeIncidentQuality | LeanProblem solvingCoachingOperations | RiskQualityOperationsRoot cause |