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| Criterion |  Architecture Software Architecture Canvas |  Architecture arc42 |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Low | Low | Low | Medium |
Timedifferent | 1-2 h | 1-2 Tage | 15-30 min | 1-4 h |
Participantsdifferent | 3-10 | 1-4 | 2-6 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Architecture Canvas, Goals, Constraints, Quality Attributes | Architecture Document, Context View, Runtime View, Deployment View | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | CanvasArchitectureAlignmentWorkshop | ArchitectureDocumentationCommunication | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |