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| Criterion |  Operations Standard Work Analysis |  UX Research User Interviews |  Operations DMAIC |  Product Discovery Opportunity Interview |
|---|---|---|---|---|
Purposedifferent | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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. | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | When opportunities are still hidden behind signals of need, it structures conversations around needs and obstacles. It looks for patterns that lead to new product opportunities. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-3 h | 30–60 min per interview | 2-12 Wochen | 30-60 min je Interview |
Participantsdifferent | 2-6 | 1 participant per interview | 3-10 | 5-12 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | Interview Notes, Themes, Insight Summary | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Interview Notes, Opportunity Themes, Customer Quotes |
Tagsno overlap | LeanProcessQuality | QualitativeResearchCustomerDiscovery | Continuous improvementQualityProcess improvement | DiscoveryInterviewsOpportunityCustomer |