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| Criterion |  Architecture C4 Model |  Operations ALPEN Method |  Operations Failure Mode and Effects Analysis |  Operations Scatter Diagram |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | When the question is whether two measures are related, the method makes patterns in the data picture visible. It separates felt correlations from relationships that actually show up in the data. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 1-4 h | 10-20 min daily | 2-6 h | 30-90 min |
Participantsdifferent | 1-5 | 1 | 3-10 | 1-4 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Daily Plan, Time Estimates, Review Notes | FMEA Table, Risk Priority, Mitigation Actions | Scatter Plot, Korrelationsnotiz, Hypothesenliste |
Tagsno overlap | ArchitectureCommunicationVisualization | PlanningTime managementProductivityOperations | RiskQualityOperationsRoot cause | Root causeQualityVisualization |