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Selected:Fault IsolationLean StartupLASR (Lightweight Approach for Software Reviews)ARID (Active Reviews for Intermediate Designs)
| Criterion |  Engineering Fault Isolation |  Innovation Lean Startup |  Architecture LASR (Lightweight Approach for Software Reviews) |  Architecture ARID (Active Reviews for Intermediate Designs) |
|---|---|---|---|---|
Purposedifferent | 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | Wochen bis Monate je Lernzyklus | 3–4 h for initial assessment; preparation and deeper analysis additional | 2–4 h review as a planning range; preparation and evaluation additional |
Participantsdifferent | 1-6 | 2-8 | 1 or a small team; particularly suitable for 3–4 people | Designers, developers as users, and facilitation |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions |
Tagsno overlap | TroubleshootingDiagnosisEngineering | LeanStartupValidationMVP | ArchitectureQualityRiskAssessmentLean | ArchitectureEngineeringFeedbackValidationTasks |