A key objective of any design is to define the dimensions of a component and the materials from which it is made so that it can perform a function acceptably. Materials selection ultimately depends upon the performance criteria of the product that usually includes aesthetics and cost effectiveness. Analyzing how a material is expected to perform with respect to requirements such as mechanical, electrical, and chemical requirements can be essential to the selection process. The design engineer translates product requirements into material properties. Characteristics and properties of materials that correlate with performances are referred to as engineering properties.