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| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Growth Funnel Analysis |  Operations Fishbone Diagram |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-3 h | 30-60 min | 15-30 min |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 1-5 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | 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 | Funnel report, Drop-off analysis, Optimization hypotheses | Fishbone Diagram, Cause Categories, Investigation Backlog | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | AnalyticsConversionGrowth | Root causeQualityOperations | Root causeIncidentLeanProblem solving |