ABSTRACT
Computer-aided design and drafting (CADD) applications have been justified because they can save money and time and can improve the quality of the drafting product. CADD is a way of converting computer impulses into engineering documents and, conversely, to translate the operator’s instructions into electronic data. Most CADD devices are easy-to-operate, self-contained computer systems for the direct translation of rough sketches into high-quality finished documents. A CADD document, then, is a combination of two or more elements to produce synergy, or united action. The logical basis for the concept lies in the fact that the human mind tends to solve problems heuristically, whereas a CADD system solves by the use of algorithms. The design engineer is there to operate a CADD operation much as was done before. But the plotter is only one of several input-output operations available with the same central processing unit.
