Abstract - An object oriented approach is used in different Software project development, and in this approach different classes and objects are interconnected with each other. The interconnection between classes and objects implied that there is also some interconnection between different Object Oriented Metrics and these connecting metrics further can be used for deriving other types of metrics like complexity, quality, estimating size and project effort etc. This paper focus on a set of object oriented metrics with their optimum value that can be used to measure the quality of an object oriented design. Object oriented design focus basically to the class and design characteristics. In this paper object oriented design metrics like coupling, cohesion, polymorphism, design size etc. are used to measure quality metrics like Reusability, Flexibility, Understandability, Extendibility, and Effectiveness. This paper also proposes the relationship between object oriented metrics and quality metrics. Keywords - Object oriented metrics (OOM), Optimum value of object oriented metrics, Quality metrics (QM), Relationship between Object oriented metrics and Quality metrics.