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| Criterion |  Architecture arc42 |  Architecture Software Architecture Canvas |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 1-2 Tage | 1-2 h | 15-30 min |
Participantsdifferent | 1-4 | 3-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Architecture Canvas, Goals, Constraints, Quality Attributes | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureDocumentationCommunication | CanvasArchitectureAlignmentWorkshop | Root causeIncidentLeanProblem solving |
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