Background: Recently. evaluation and accreditation system of hospitals has had a special emphasis on reporting malpractices and sharing errors or lessons learnt from errors. but still due to lack of promotion of systematic approach for solving problems from the same system. this issue has remained unattended. https://www.roneverhart.com/Corvette-APR-Performance-Carbon-Fiber-Engine-Covers-C7-Stingray-LT1/