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Criterion
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)
Stock and Flow Diagram method illustration showing its working structure
Systems Thinking
Stock and Flow Diagram
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Paper illustration of System Dynamics Simulation with its method-specific working model.
Systems Thinking
System Dynamics Simulation
Purposedifferent
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 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.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.System Dynamics Simulation makes assumptions about time, delay, and feedback testable through experiments. It draws relationships, patterns, and feedback loops. The result is captured as a simulation model and scenario reports.
Complexitydifferent
MediumHighHighHigh
Timedifferent
3–4 h for initial assessment; preparation and deeper analysis additional2-6 hSeveral meetings plus preparation and analysis; total effort depends on scopeMehrere Tage bis Wochen
Participantsdifferent
1 or a small team; particularly suitable for 3–4 people1-6Evaluation team, architects, and relevant stakeholders1-5 Modellierende, Stakeholder asynchron
Formatdifferent
Workshop + asyncWorkshop + asyncWorkshop + asyncAsync
Outputdifferent
Lean 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 checksStock and Flow Model, Dynamics Notes, Simulation HypothesesPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsSimulation Model, Scenario Reports
Tagsno overlap
ArchitectureQualityRiskAssessmentLean
DynamicsSimulationFeedbackSystems thinking
ArchitectureQualityRiskTradeoffsStakeholders
Systems thinkingDynamicsSimulationAnalysis
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