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Selected:GAP AnalysisATAM (Architecture Tradeoff Analysis Method)Pre-MortemSAAM (Software Architecture Analysis Method)
| Criterion |  Business Strategy GAP Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Pre-Mortem |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|---|
Purposedifferent | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | 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. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-3 h | Several meetings plus preparation and analysis; total effort depends on scope | 20–45 min | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | Small cross-functional group | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Gap Matrix, Action Plan, Risk Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Risk list, Mitigation plan, Assumption log | 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 |
Tagsno overlap | StrategyAnalysisPlanning | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionFailurePlanning | ArchitectureChangeAnalysisComparisonQuality |