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Criterion
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Stock and Flow Diagram method illustration showing its working structure
Systems Thinking
Stock and Flow Diagram
Four paper stations connect system purpose, quality goals, risk cards and focused investigation with a target and gap profile.
Architecture
LASR (Lightweight Approach for Software Reviews)
Causal Loop Diagram workspace showing the question, observations, and next decision.
Systems Thinking
Causal Loop Diagram
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.A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics.LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail.A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations.
Complexitydifferent
HighHighMediumMedium
Timedifferent
Several meetings plus preparation and analysis; total effort depends on scope2-6 h3–4 h for initial assessment; preparation and deeper analysis additional1-3 h
Participantsdifferent
Evaluation team, architects, and relevant stakeholders1-61 or a small team; particularly suitable for 3–4 people2-8
Formatdifferent
Workshop + asyncWorkshop + asyncWorkshop + asyncWorkshop
Outputdifferent
Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsStock and Flow Model, Dynamics Notes, Simulation HypothesesLean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checksCausal Loop Diagram, Feedback Notes, Leverage Points
Tagsno overlap
ArchitectureQualityRiskTradeoffsStakeholders
DynamicsSimulationFeedbackSystems thinking
ArchitectureQualityRiskAssessmentLean
FeedbackSystems thinkingCausalityDynamics
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