Development Process
The main difference between avionics software and other embedded systems is that the actual standards are often far more detailed and rigorous than commercial standards, usually described by documents with hundreds of pages.
Since the process is legally required, most processes have documents or software to trace requirements from numbered paragraphs in the specifications and designs to exact pieces of code, with exact tests for each, and a box on the final certification checklist. This is specifically to prove conformance to the legally mandated standard.
Deviations from a specific project to the processes described here can occur due to usage of alternative methods or low safety level requirements.
Almost all software development standards describe how to perform and improve specifications, designs, coding, and testing (See software development model). However avionics software development standards add some steps to the development for safety and certification:
Read more about this topic: Avionics Software
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