Before people used tools to draw something they went to what we call now a "General Contractor" with an idea and he had to come up with the rest. After a while the contractors wanted more. Just an idea wasn't enough for them. Their clients sometimes wouldn't like what they had built for them. So eventually the contractors asked the clients to tell them exactly what they wanted. Since it was hard to sketch accurately, tools were developed to aid them in drawing. This enabled the client to show the contractor exactly what he wanted.
As the population grew rapidly the demands for faster and more accurate plans did also. Once again drafters looked for a new way to draw. They decided to turn to the computer. In the 1950s MIT discovered the capability to display a computer-generated image on the screen (Zandi, 5). Up until the mid to late 1970s drafters used this technology just for mathematical calculations (Goetsch, 23). Then they discovered that the computer could be used to display more than just numbers. They found that they could use it to draw on. It wasn't until the early 1980s that this new technology caught on (Goetsch, 23). Drafters found that using computers was much quicker, more accurate, and much neater than hand drawn plans. They had found their solution, Computer Aided Drafting and Design or CADD.
Now that CADD has found it way into drafting it has been improving upon drafting greatly over the past 20 years. Today nearly all firms use CAD (Friedman). It has changed the way people go about their drawing and designing process. The variety of