Responding to the growth in existing safety-critical system complexity, the DoD and government community have created the command, control, communications, computer, intelligence, surveillance and reconnaissance (C4ISR) program. With many working groups to continually develop and refine specifications and standards, the avionics community is starting to see the practicality and benefits of adopting the commercial-off-the-shelf (COTS) approach. In recent years, VSO engineers have developed many computing board and system standards including VMEbus, PCI Mezzanine Card (PMC), VXS, VPX and FMC. New developments under creation by the VITA Standards Organization (VSO) are accelerating the use of open embedded architectures for avionics systems. Avionics design engineers no longer have to rely on proprietary specifications, which typically lag behind commercial market technology development at both the system and component level.
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