Abstract :
In the days when one man could design a device, build it, and sell it, his own memory was all that was needed to provide instructions and specifications for manufacture. However, as organizations grow, a hierarchy develops from engineer to draftsman to production worker. The draftsman transforms the engineer´s rough ideas and sketches into a standardized design document that can be understood by people who have never talked to the engineer and cannot concern themselves with the origin of their product.
