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Selected:ATAM (Architecture Tradeoff Analysis Method)Ivy Lee MethodFailure Mode and Effects AnalysisPareto Analysis
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Ivy Lee Method |  Operations Failure Mode and Effects Analysis |  Decision Making Pareto Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | 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. | In many problem situations, effect is distributed unequally across many causes. A Pareto Analysis separates the few drivers with high leverage from the long remainder and focuses attention on what measurably moves the needle. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 5-10 min daily | 2-6 h | 30-60 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1 | 3-10 | 1-6 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Daily Priority List, Completion Notes | FMEA Table, Risk Priority, Mitigation Actions | Pareto Chart, Top Causes, Focus List |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | PrioritizationProductivityExecution | RiskQualityOperationsRoot cause | PrioritizationQualityFocusRoot cause |