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| Criterion |  Operations ALPEN Method |  Architecture SAAM (Software Architecture Analysis Method) |  Architecture C4 Model |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | 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. |
Complexitydifferent | Low | High | Low | Medium |
Timedifferent | 10-20 min daily | Preparation, scenario analysis, and findings review; effort depends on scope | 1-4 h | 45-120 min |
Participantsdifferent | 1 | Architecture experts and stakeholders for scenarios and weighting | 1-5 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Daily Plan, Time Estimates, Review Notes | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Context Diagram, Container Diagram, Component Diagram | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | PlanningTime managementProductivityOperations | ArchitectureChangeAnalysisComparisonQuality | ArchitectureCommunicationVisualization | ChangeRoot causeTroubleshootingComparison |