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1

The key elements that differentiate flight system software from other less-specialized types of software are: Functional Safety, real-time, determinism, SOTIF (Safety of the Intended Function). Derived from these are: functional safety architectures, concurrent programming, analysis and design methodologies, development methodologies, coding standards, ...


4

As others have mentioned there are a lot of aviation specific aspects to the avionics software development process. The majority of these fall into two main categories; functional and certification. Functionally, it has to perform its intended function reliably and safely. To do that it has to be developed to a Design Assurance Level (DAL) commensurate with ...


1

Developing software for avionics is considered a specialized field with respect to requiring knowledge of embedded systems skills, handling communications protocols between avionics systems, and adhering to the appropriate industry standards. None of these things are particularly difficult, but the skills and knowledge are generally built up over a period of ...


3

I don't have experience with avionics, but I do have some experience with medical and the principles are similar. In my not very humble opinion, the main challenges are paperwork, paperwork and more paperwork and having to live with technology that is either 30 years old or total usability horror, because it is not objectively safer, but happens to have the ...


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I have read somewhere that there is only one company that manufactures CRT screens now and CRT screens will have to be replaces at some time in the future because there will be no spares. I think work is in progress to certify them.


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This indicates the "mod level" of the hardware in the unit. When a piece of equipment is designed and then certified, it is likely that none of the boxes will be marked. Then say the product design has a hardware change made to it. Whatever that change consists of is then incorporated into new production units at "mod level" 1. Any units ...


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