This paper introduces a new term: model based open systems approach (MBOSA). It also describes the use of TES-SAVi’s AWESUM® MBOSA modeling tools on two significant U.S. Army advanced capabilities efforts scheduled to support U.S. Army aircraft flights in 2021. This MBOSA is being refined and proven with these two-sets of modular open systems approach (MOSA) software suites that will be hosted on U.S. Army advanced aircraft, namely the Apache Attack and Black Hawk Utility aircraft. The development efforts for these two programs have similar design requirements. They were for multiple FACE™ software applications operating on modular open systems hardware.
The software is required to align to the FACE Technical Standard, Edition 3.0 (or latest edition), to be built to Radio Technical Commission for Aeronautics (RTCA) DO-178C Software Certification guidance using the DO-331 model-based supplement processes, and to the FAA’s AC-20-148 guidance for reusable software components [ref.: 1,2,3,4]. These capabilities will be submitted to the U.S. Army for flight qualifications using Army Regulation AR 70-62 for U.S. Army Airworthiness [ref.: 5]. This MBOSA software lifecycle modeling process and TES-SAVi’s AWESUM® MBOSA modeling tools support the lifecycle (i.e., requirements development, architecture and software design high level and low level, systems data and semantic modeling, and eventual auto-generation of embedded software code aligned with the FACE Technical Standard, auto-generation of tests with artifacts, and auto-generation of the complete set DO-178C life cycle documentation). These products are purposely designed to support FACE Verification and Airworthy Qualification efforts.
Paper Published 21 September 2020.