Comment by mapt
15 hours ago
In writing life critical systems like the Space Shuttle's operating system, effectively 99.9% of all work is QA.
MS had the dominant operating system in the world, and keeping its userbase and its ~monopoly dividend would have been more profitable as a business than doing... everything it's done in the past twenty years. Selling software that all the people use all the time just has a lot less opportunity for growth than making new software, according to Investor Brain.
>In writing life critical systems like the Space Shuttle's operating system, effectively 99.9% of all work is QA.
Similar in automotive safety related systems like brake, steering or powertrain.
Few is writing function code to how much is requirement engineering, FMEA and writing tests and testing.