Undersea Weapons > Systems Analysis & Simulation (SAS)
The Systems Analysis and Simulation (SAS) Division, led by Ms. Marcy Perini, specializes in high-fidelity digital modeling and simulation, emphasizing undersea applications. SAS has the responsibility for the design, construction, validation, and maintenance of a suite of large-scale undersea warfare simulations used by undersea weapon developers, users, and evaluators. The Division's technical capabilities include: operations research, systems analysis, game theory, optimization, Analyses of Alternatives (AOAs), Military Value 
Assessments (MVAs), and simulation verification, validation, and accreditation (VV&A). Computational facilities include a local area network comprised of over 650 processors, along with state-of-the-art scientific visualization facilities. The key component in achieving SAS's mission is the selectable-fidelity physics based Technology Requirements Model (TRM) simulation package. TRM has found important applications across the entire scope of the defense acquisition management cycle. It is used to define requirements for systems; develop concepts; design, develop, and evaluate subsystems; evaluate system-level performance, including support for developmental and operational testing; and to educate and train fleet personnel on undersea system capabilities. TRM is installed and being used by the Naval Undersea Warfare Center (NUWC); Commander Destroyer Squadron 26 (CDS-26); Commander Submarine Development Squadron 12 (CSDS-12); CSP Pearl Harbor; Atlantic Undersea Test and Evaluation Center (AUTEC); Argon ST Corporation; JHU/APL; Australian Defence Science and Technology Organisation (DSTO); as well as multiple units within ARL.