DecisionArchitect is a professional-grade Multi-Criteria Decision Analysis (MCDA) tool that transforms complex engineering decisions into precise, data-driven evaluations. Built on the Analytic Hierarchy Process (AHP), it eliminates error-prone spreadsheets with automated matrix calculations, requirement validation, and comprehensive reporting. The intuitive interface guides users through criteria weighting, alternative analysis, and sensitivity testing, while optional AI assistance helps estimate costs and validate assessments. Whether you're conducting engineering trade studies, evaluating proposals, or analyzing system alternatives, DecisionArchitect delivers the analytical rigor needed for critical technical decisions. Available for macOS.