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| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Delivery Value Stream Mapping |  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 delivery work dissolves into wait times, handoffs, and hidden effort, Value Stream Mapping makes the actual flow visible. The method exposes bottlenecks, idle time, and feedback loops so lead time and improvement levers become tangible. | 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 |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-3 h | 15-30 min |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 4-10 | 2-6 |
Formatdifferent | Workshop + 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 | Current-state map, Future-state map, Bottleneck list | Root cause notes, Countermeasures |
Tags1 shared | ArchitectureQualityRiskAssessmentLean | LeanFlowWasteDelivery | Root causeIncidentLeanProblem solving |
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