As a former Microsoft employee, my experience was that the longer a product was around, the harder it was to figure out who understood any part of it well enough to change something.
I would guess I averaged about 10 lines a month on my project that had been around for decades. Making even slight tweaks required dozens of meetings, design discussions, functional and performance testing, etc. etc. It took an eternity.
I would guess I averaged about 10 lines a month on my project that had been around for decades. Making even slight tweaks required dozens of meetings, design discussions, functional and performance testing, etc. etc. It took an eternity.