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Selected:C4 ModelCustomer Journey MappingLASR (Lightweight Approach for Software Reviews)Customer Journey Canvas
| Criterion |  Architecture C4 Model |  UX Research Customer Journey Mapping |  Architecture LASR (Lightweight Approach for Software Reviews) |  UX Design Customer Journey Canvas |
|---|---|---|---|---|
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 user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 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. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 1-4 h | 2-4 h | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-3 h |
Participantsdifferent | 1-5 | 4-10 | 1 or a small team; particularly suitable for 3–4 people | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Journey Map, Pain-point List, Opportunity Backlog | 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 | Customer Journey Canvas, Pain Points, Experience Opportunities |
Tagsno overlap | ArchitectureCommunicationVisualization | JourneyServiceService design | ArchitectureQualityRiskAssessmentLean | JourneyCustomerService designCanvas |