View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Solution InterviewARID (Active Reviews for Intermediate Designs)Fault IsolationProblem Interview
| Criterion |  Product Discovery Solution Interview |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |  Product Discovery Problem Interview |
|---|---|---|---|---|
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. | 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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-60 min je Interview | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min | 30-60 min je Interview |
Participantsdifferent | 5-10 Interviews | Designers, developers as users, and facilitation | 1-6 | 5-12 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ValidationInterviewsPrototype | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering | DiscoveryInterviewsValidation |