Mathematical Modeling and Evaluation of Reliability Parameters Based on Survival Possibilities under Uncertain Environment

In this article, mathematical modeling for the evaluation of reliability is studied using two methods. One methods, developed based on possibility theory. The performance system prime concern. view this, outcomes failure are required to evaluate with utmost care. theory, information data determined from decision-making experts subjective. same method also related survival possibilities as against probabilities. other one that concept approximation closed interval including piecewise quadratic fuzzy numbers. method, a expert not sure his/her estimates parameters. Numerical experiments performed illustrate efficiency suggested methods in research. end, paper concluded some future research directions be explored proposed approach.