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Selected:Solution Interview8D Problem SolvingARID (Active Reviews for Intermediate Designs)Root Cause Analysis
| Criterion |  Product Discovery Solution Interview |  Operations 8D Problem Solving |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | High | Medium | Medium |
Timedifferent | 30-60 min je Interview | 1-6 Wochen | 2–4 h review as a planning range; preparation and evaluation additional | 1-4 h |
Participantsdifferent | 5-10 Interviews | 4-10 | Designers, developers as users, and facilitation | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | ValidationInterviewsPrototype | QualityProblem solvingRoot cause | ArchitectureEngineeringFeedbackValidationTasks | Root causeProblem solvingQualityIncident |