Avionic Systems have traditionally been driven by hard real-time requirements, military standard
network interfaces, rugged processors, and high robustness languages (ex Ada) to satisfy safety and
security requirements Size, power, weight, and cost are critical parameters for avionics systems as
they directly affect mission endurance and mission effectiveness. The need to leverage COTS
processing, networking, and software has lead to wide spread use of Modular Open Systems
Architectures (MOSA) for avionics embedded systems. For a subset of those systems, requiring
certification, Integrated Modular Avionics (IMA) architectures have been developed leveraging ARINC
653 with time and space partitioning More recently, the need to support multiple level security
exchanges between platforms has driven the need for High Assurance MOSA (HAMOSA) based on
MILS/MLS technology. Extending the computing environment for connection to the Global
Information Grid (GIG) places new requirements for interoperability to support Windows and Linux
applications.
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