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| Criterion |  Operations 5 Whys |  Architecture Software Architecture Canvas |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|
Purposedifferent | 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. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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. |
Complexitydifferent | Low | Low | Medium |
Timedifferent | 15-30 min | 1-2 h | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 2-6 | 3-10 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Architecture Canvas, Goals, Constraints, Quality Attributes | 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 |
Tagsno overlap | Root causeIncidentLeanProblem solving | CanvasArchitectureAlignmentWorkshop | ArchitectureQualityRiskAssessmentLean |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
