Engineers spend a significant amount of time and resources during the design, product
(or service) development, and production phases of the product life cycle to ensure that the
product or system will provide the desired service level. In doing so, engineers start with a
concept design, select its components, test its functionality, and estimate its reliability. Modifications
and design changes are usually made and these steps are repeated until the product
(or service) satisfies its requirements. The prelude of this book presents these steps in the design
of the “One-Hoss-Shay