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| Criterion |  Operations 5 Whys |  Architecture LASR (Lightweight Approach for Software Reviews) |  Innovation Reverse Brainstorming |
|---|---|---|---|
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. | 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. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 15-30 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-60 min |
Participantsdifferent | 2-6 | 1 or a small team; particularly suitable for 3–4 people | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Root cause notes, Countermeasures | 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 | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | Root causeIncidentLeanProblem solving | ArchitectureQualityRiskAssessmentLean | BrainstormingIdeationCreativityRisk |
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