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Criterion
Paper illustration with architecture components and concrete change tasks for comparison.
Architecture
SAAM (Software Architecture Analysis Method)
Paper illustration for Evaporating Cloud.
Systems Thinking
Evaporating Cloud
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.
Product Discovery
Assumption Mapping
Purposedifferent
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 method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict.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.When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first.
Complexitydifferent
HighMediumHighMedium
Timedifferent
Preparation, scenario analysis, and findings review; effort depends on scope60-120 minSeveral meetings plus preparation and analysis; total effort depends on scope45-60 min
Participantsdifferent
Architecture experts and stakeholders for scenarios and weighting2-8Evaluation team, architects, and relevant stakeholders2-8
Formatdifferent
Workshop + asyncWorkshopWorkshop + asyncWorkshop + async
Outputdifferent
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 alternativesConflict Cloud, Assumption List, Breakthrough Ideas, Next ExperimentsPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsAssumption map, Test backlog, Risk ranking
Tagsno overlap
ArchitectureChangeAnalysisComparisonQuality
Theory of ConstraintsAssumptionsSystems thinking
ArchitectureQualityRiskTradeoffsStakeholders
AssumptionsRiskExperimentsValidation
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