The book consists of two approaches to develop a new air cooler using quality function deployment technique. The first one is the mathematical computing approach. In this approach, traditional QFD technique was employed to build a quality plan for a new product. In the second stage, a neural approach (NN) was used. This approach centered on the application of invent a new knowledge of learning technique with three slope parameters instead of one at the same activation function each one of them represent a major production entities which are the material, electrical, and mechanical. At the final stage of the work, the manipulation and the discussion of the intelligent approach are done with the validation of this method and high reliability estimation of this technique.