Structural Modified Condition/Decision Coverage (MC/DC), tool qualification, and formal methods in operating system development.
For Design Assurance Level A, DO-178C mandates that every software condition must be shown to independently affect decision outcomes. AvionicsOS verifies MC/DC coverage directly on compiled target assembly to eliminate compiler anomalies.
Every single machine instruction maps back through source code lines, low-level software requirements, and high-level system safety objectives, providing an ironclad audit package for airworthiness authorities.