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| Criterion |  Facilitation Timeline |  UX Research User Interviews |  UX Research Affinity Diagramming |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | When a project, incident, or change process is only remembered in fragments, Timeline brings the sequence back into a readable form. It makes turning points, precursors, and after-effects recognizable over the course of time. | 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 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | 30-90 min | 30–60 min per interview | 45–90 min | 2-6 h |
Participantsdifferent | 2-12 | 1 participant per interview | 3-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Timeline, Milestones, Insight Notes | Interview Notes, Themes, Insight Summary | Theme clusters, Insight statements, Opportunity areas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | TimelineFacilitationSequence | QualitativeResearchCustomerDiscovery | SynthesisQualitativeRoot cause | CausalityIncidentRoot causeTimeline |