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| Criterion |  Decision Making Constraint Analysis |  Architecture C4 Model |  Operations Change Analysis |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 30-90 min | 1-4 h | 45-120 min | 60-120 min |
Participantsdifferent | 2-8 | 1-5 | 2-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Context Diagram, Container Diagram, Component Diagram | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ArchitectureCommunicationVisualization | ChangeRoot causeTroubleshootingComparison | ArchitectureCommunicationStakeholdersCanvas |