What is the Number one and two mostly used art programs by fashion designers? after making the drawings in these art programs, how do the freelancers get their designs onto different clothing and material and mass produce it.. What are the steps that are usually taken.

Here is a really informative site on a fashion design career. There are also links for added information.

http://www.princetonreview.com/cte/profiles/dayInLife.asp?careerID=63