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| Criterion |  UX Research User Interviews |  Systems Thinking Causal Loop Diagram |  UX Research Affinity Diagramming |  Systems Thinking Stock and Flow Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations. | 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. | A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 30–60 min per interview | 1-3 h | 45–90 min | 2-6 h |
Participantsdifferent | 1 participant per interview | 2-8 | 3-10 | 1-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Interview Notes, Themes, Insight Summary | Causal Loop Diagram, Feedback Notes, Leverage Points | Theme clusters, Insight statements, Opportunity areas | Stock and Flow Model, Dynamics Notes, Simulation Hypotheses |
Tagsno overlap | QualitativeResearchCustomerDiscovery | FeedbackSystems thinkingCausalityDynamics | SynthesisQualitativeRoot cause | DynamicsSimulationFeedbackSystems thinking |