[CraigJPerry]

Yeah in practice there’s just no other way in the places I’ve worked. The problem I’ve encountered still though is getting developers to estimate sufficiently to give that time. Developers massively underestimate (myself included).

[Viliam1234]

If you have waterfall, there is usually not enough time to make the product itself, and documentation is much lower priority than that.

If you have agile, in theory all developers are replaceable. In reality, a few have writing skills, but most don't.

[lonelappde]

The problem is that you are estimating instead of producing and measuring. Just take the time and succeed or fail. Don't estimate it