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| Criterion |  Product Discovery Dual-Track Agile |  UX Research User Interviews |  UX Research Personas |  Agile Acceptance Criteria Workshop |
|---|---|---|---|---|
Purposedifferent | When uncertainty and delivery run in parallel, it separates learning work from implementation while keeping both connected. It prevents unvalidated ideas from falling directly into the delivery stream. | 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 target groups stay too vague and teams talk about the same people differently, personas create a shared, solid picture of usage. Condensed profiles make needs, contexts, and differences tangible enough for decisions. | When a story needs clear checkpoints before implementation, it sharpens expectation and scope together. It sorts work by value, risk, and delivery ability. The result is captured as Acceptance Criteria and a Story Update. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | Laufend, Wochen bis Monate | 30–60 min per interview | 1-3 Tage | 20-40 min pro Story |
Participantsdifferent | 4-10 | 1 participant per interview | Internes Team | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Discovery Backlog, Delivery Backlog, Experiment-Ergebnisse, Validierte Stories | Interview Notes, Themes, Insight Summary | Persona Profiles, Needs Summary, Scenario Notes | Acceptance Criteria, Story Update |
Tagsno overlap | AgileDiscoveryDelivery | QualitativeResearchCustomerDiscovery | ResearchCustomerSynthesis | AgileRequirementsRefinementBehavior-Driven Development |