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| Criterion |  Decision Making Delphi Method |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Views and Beyond |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. | 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. | 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. |
Complexitydifferent | High | High | Medium | Low |
Timedifferent | 1-4 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 Tage | 1-2 Tage |
Participantsdifferent | 6-30 Experten | Evaluation team, architects, and relevant stakeholders | 1-4 | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Architecture Views, Cross-view Notes, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureQualityRiskTradeoffsStakeholders | DocumentationStakeholdersArchitecture | ArchitectureDocumentationCommunication |