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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Facilitation Expectation Mapping |  Architecture arc42 |  Architecture Views and Beyond |
|---|---|---|---|---|
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. | When roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. |
Complexitydifferent | High | Low | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 1-2 Tage | 1-3 Tage |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-12 | 1-4 | 1-4 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Expectation Map, Alignment Notes, Agreements | Architecture Document, Context View, Runtime View, Deployment View | Architecture Views, Cross-view Notes, Rationale |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | AlignmentStakeholdersTeam | ArchitectureDocumentationCommunication | DocumentationStakeholdersArchitecture |