js333vip.com，OSD - Simulation Based Design The following innovative practice is in the application of Modeling and Simulation to defense system acquisition is being explored. Program Managers who are faced with similar circumstances are encouraged to contact the source provided to see if the knowledge this source has gained is applicable to their situation.Simulation Based Design is a system design approach centered upon the creation of virtual system prototypes and virtual environments within an integrated system design capture and simulation framework. Virtual prototypes of candidate system designs are constructed based upon design information captured in multiple domains. These virtual prototypes are then examined through simulation in operational scenarios where the system functions in a virtual environment. The cost and schedule expended to design and develop modern systems has grown dramatically over the past decade. The increasing complexity and sheer magnitude of advanced commercial and military systems has exceeded the capacity of system design teams to efficiently design these complex systems using existing system design methodologies and tools. This situation has resulted in cost and schedule over-runs in several large projects and some notable outright failures. Advanced system engineering development methods and automation techniques are required to manage the complexity inherent in the design of large complex computer based systems and to provide an efficient mechanism for evaluating multiple candidate design options within several domains (e.g. functional or logical design vs. implementation or resource design) and at various levels of design abstraction (i.e. level of design detail). The US Advanced Research Projects Agency has pursued a simulation based design approach in the development of advanced ship design tools which address mechanical and hydrodynamic ship design factors. If the use of these SBD tools would assist your program contact, DARPA at 696-2351.