Comprehensive Study of Reliability Theory and its basic concepts

In this paper, the author has discussed that an object is meant to be reliable if it works upto expectation in times of need. However, for the development of a proper theory out of this intuitive meaning, one need to have a more precise definition that would be capable of utilizing our scientific knowledge to characterize, quantify and measure reliability. A commonly used definition of reliability is that it is the probability that an equipment or device will perform the functions intended of it under conditions specified for its operation for a given period of time. At the point when the gadget does not do its proposed function, we may state that it has failed. The idea of failure can be all the more intricately depicted, obviously. Failure can be any episode or condition that causes a mechanical plant, made item, procedure, material or administration to corrupt or wind up inadmissible for performing acceptably, securely, dependably and cost-viably. The fundamental goal of reliability theory is to comprehend the example in which failures happen for various components under various working conditions.