The ability to draw an accurate fashion spec requires a high level
of technical knowledge combined with a steady hand. Most fashion
students will not be at this advanced level when starting out.
Moreover, not all fashion designers will be required to produce a
factory spec. However, in practice, fashion students and designers
should be able to understand them and produce a detailed line
drawing of a garment when working with a pattern maker.
Specification drawings serve an important function in identifying
and eliminating potential faults before production. As such, they
are increasingly being drawn with the aid of computers using a
variety of CAD/CAM programs, signalling a move towards a more
integrated design and manufacture approach.