Power systems should have acceptable reliability in order to operate properly. Highly available and dependable protective relays help to obtain the desirable reliability. The relays should be periodically evaluated during specific intervals to achieve the mentioned characteristics. The Routine Test Interval (RTI) should be optimized in order to economically maximize the reliability of the prote...

Software cost estimation is a crucial part of the software project initiation process. Cost estimation plays an important role in the bidding/budgeting and help managers to use their resources at the maximum output level. Software Project failure rate is very high in case the project cost estimation is not done by taking all the important factors into the consideration. So finding the cost at t...

CONTEXT Contraceptive failure rates measure a woman's probability of becoming pregnant while using a contraceptive. Information about these rates enables couples to make informed contraceptive choices. Failure rates were last estimated for 2002, and social and economic changes that have occurred since then necessitate a reestimation. METHODS To estimate failure rates for the most commonly use...

Reliability allocation has an essential connection to design for reliability and is an important activity in the product design and development process. In determining the reliability of subsystems or components on the basis of goal reliability, attention must be paid to failure effect, failure information, and improvement opportunities based upon real potentials for reliability improvement. In...