MANUFACTURING MAY be the function that has the greatest benefit from the application of PLM technology. The manufacturing function is well defined. The object is to produce a product with precisely defined specifications and tolerances utilizing the least amount of resources. There are three distinct phases: producing the first product, ramp up, and producing the rest of the products. Digital Manufacturing is the subset of PLM that focuses on producing a product that consistently meets the specifications, yet does so using the minimum possible resources from the first product on. This chapter will focus on how Digital Manufacturing shows the promise of accomplishing this.