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Criterion
Paper illustration of a Polarity Map with two poles and four quadrants
Systems Thinking
Polarity Mapping
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
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)
Paper illustration for CATWOE Analysis.
Systems Thinking
CATWOE Analysis
Purposedifferent
Polarity Mapping makes tensions between two opposing poles tangible, such as standardization and adaptation or control and autonomy. The method guards against making apparent either-or decisions prematurely.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.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.CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way.
Complexitydifferent
MediumHighMediumMedium
Timedifferent
1-2 hSeveral meetings plus preparation and analysis; total effort depends on scope3–4 h for initial assessment; preparation and deeper analysis additional45-90 min
Participantsdifferent
3-12Evaluation team, architects, and relevant stakeholders1 or a small team; particularly suitable for 3–4 people3-8
Formatdifferent
WorkshopWorkshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Polarity Map, Warning Signs, Balance ActionsPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsLean 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 checksCATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints
Tagsno overlap
Systems thinkingTradeoffsLeadership
ArchitectureQualityRiskTradeoffsStakeholders
ArchitectureQualityRiskAssessmentLean
Systems thinkingFramingStakeholders
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