The product to be manufactured is first conceived
by the engineer. This engineer determines the need for
a product. It may be an entirely new product or new
model of the old product. Experimental designs are
made ,and scale models are made and tested. Finally a
production design is created after all faults have been
corrected. Part prints are drawn to illustrate the product
graphically. All dimensions and specifications required
are included on the print. The material to be used in the
product is specified, and product name and number is
included. Functions of a product engineering
department can be itemized as follows.