Yes, it is important at all phases of development, not just systems development. Documentation is an important part of the discipline of Systems Analysis and Design.
the railroad
the railroad
the telephone
Alexander Hamilton was most responsible for the development of America's financial system.
system soft were is most important part of computer . we can't see and tough it.
The most important system in the upper and lower body is the Circultory System
Considered the most important orthopedic development in the twentieth century, arthroscopic surgery is widely used.
languade
agriculture(PLATO)
Suggest three of the most important government characteristics for successful small business development.
Under Stalin the development of a system of organized inequality had been reflected within Stalin's methods. One of the most important was the repudiation of the goal of equality of incomes..
A standard answer, which may not reveal the most important reasons, is (1) that the writers know the programs too well and do not approach the documentation from the viewpoint of a novice; (2) the writers do not have to use the documentation themselves and, therefore, do not see its flaws.