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| Criterion |  Architecture C4 Model |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Fishbone Diagram |
|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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 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. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-60 min |
Participantsdifferent | 1-5 | 1 or a small team; particularly suitable for 3–4 people | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | 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 | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ArchitectureCommunicationVisualization | ArchitectureQualityRiskAssessmentLean | Root causeQualityOperations |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
