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| Criterion |  Architecture C4 Model |  UX Design Customer Journey Canvas |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|
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. | When a journey needs to be understood across several phases, it arranges experience, touchpoints, and opportunities into one picture. It makes gaps and friction along the user path clear. | 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 | Medium | Medium |
Timedifferent | 1-4 h | 1-3 h | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 1-5 | 3-10 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Customer Journey Canvas, Pain Points, Experience Opportunities | 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 | ArchitectureCommunicationVisualization | JourneyCustomerService designCanvas | ArchitectureQualityRiskAssessmentLean |
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