Work in progress is a concept used frequently in the engineering design space.
It means that you shouldn’t take whatever is stated on a drawing or in a document as accurate or gospel.
It’s purpose is to allow it to be drafted and continually updated until issued for construction.
This is applicable to our everyday lives and can be used as everything we do is a work in progress.
If you don’t put something out into the world until it’s perfect it will never get done, so drop the ego and have a crack.