New Delhi-110025

This paper describes an improved integrated Object Oriented metrics for the high-level design quality assessment of Object Oriented codes. A single class based metrics (a Weighted Class Complexity, WCC) has been proposed that may be used for cumulative measure of all aspects of object oriented design (encapsulation, inheritance and polymorphism), and hence an indication of quality of class in terms of complexity. This WCC when averaged will enable computing the average complexity of Software and also the quality. A strategy followed in Dromey’s Quality Model is adapted to identify the product properties of Object Oriented software those influence quality. A set of high-level quality attributes is hence selected and thereafter a link has been established between them. This single metric may be used in initial stages and ensuring compliance at this stage will increase the reliability of system as a whole, as reliability in general is a by-product of quality