I develop embedded software. When products mature and are released they might need maintenance in the sense that the original SW team is not working at the comp

I develop embedded software. When products mature and are released they might need maintenance in the sense that the original SW team is not working at the company any more or working on something else. One or more developers gets tasked with maintenance of this product and can bugfix fast instead of trying to ressurect the original software team. So in my opinion maintenance is real and often used in different industries. :)