Modern eng. systems have become increasingly complex to design and build while the demand for reliability, quality and cost effective development continues. Reliability is one of the most important attributes in such critical systems as defense system, aerospace, real time control and medical application as well as commercial systems. Growing International competition has increased the need for all engineers and designers to ensure a level of quality and reliability of their product. In todays marketplace, product quality is necessary in order to stay in business but in tomorrows...