SERC TALKS: “How Can System Architecture and Cost Models be Integrated for UAS Tradespace Analysis?”
The Naval Postgraduate School and Air Force Institute of Technology have developed affordability tradeoff analysis methods employing architectural and parametric cost models applied to Unmanned Aerial Systems (UAS). A focus is at the interface of cost and architecture models for the automatic extraction of system size attributes from the architecture models at the levels of software, system and UAS domain product line. Costs can then be associated with architecture variants to assess tradeoffs between affordability and other ilities.
Cost models have been extended for integration with formal Model-Based Systems Engineering (MBSE) methods including SysML, Orthogonal Variability Modeling (OVM), discrete event simulation, and system behavioral modeling with Monterey Phoenix (MP). Relevant case studies for small UAS are continuing as the methods are being refined. Existing models were applied to demonstrate tradeoff analyses, and new models were created to better represent actual conditions empirically observed in practice.
The talk will overview the modeling methods and their interfaces, case studies applied to single system architectures, and current investigations with UAS domain reference architectures developed by AFIT.