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<p>This paper describes an improved hierarchical model for the assessment of high-level design quality attributes in object-oriented designs. In this model, structural and behavioral design properties of classes, objects, and their relationships are evaluated using a suite of object-oriented design metrics. This model relates design properties such as encapsulation, modularity, coupling, and cohesion to high-level quality attributes such as reusability, flexibility, and complexity using empirical and anecdotal information. The relationship, or links, from design properties to quality attributes are weighted in accordance with their influence and importance. The model is validated by using empirical and expert opinion to compare with the model results on several large commercial object-oriented systems. A key attribute of the model is that it can be easily modified to include different relationships and weights, thus providing a practical quality assessment tool adaptable to a variety of demands.</p>
quality model, quality attributes, design metrics, product metrics, object-oriented metrics

C. Davis and J. Bansiya, "A Hierarchical Model for Object-Oriented Design Quality Assessment," in IEEE Transactions on Software Engineering, vol. 28, no. , pp. 4-17, 2002.
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