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| Criterion |  Operations Change Analysis |  Architecture arc42 |  Decision Making Option Framing |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | In early decisions, alternatives are often still vague, incomplete, or blended together. Option Framing brings every possibility into a comparable form and makes visible which variant actually fits the question. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 45-120 min | 1-2 Tage | 45-120 min | 1-4 h |
Participantsdifferent | 2-6 | 1-4 | 3-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Architecture Document, Context View, Runtime View, Deployment View | Option Frames, Assumption Notes, Comparable Shortlist, Decision Inputs | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureDocumentationCommunication | OptionsDecision framingStrategyComparison | ArchitectureCommunicationVisualization |