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| Criterion |  Operations Change Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Eat the Frog |
|---|---|---|---|
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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | The method protects energy and attention for the task that creates the largest progress and is often postponed. |
Complexitydifferent | Medium | High | Low |
Timedifferent | 45-120 min | Several meetings plus preparation and analysis; total effort depends on scope | 15-90 min daily |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 1 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Priority Task, Completion Note, Daily Focus |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureQualityRiskTradeoffsStakeholders | PrioritizationProductivityFocusExecution |
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