Journal of Information & Systems Management Rachna Kohar 5 4 2015 http://www.dline.info/jism/fulltext/v5n4/v5n4_3.pdf Different metrics have been proposed for measuring the properties of a service. In this paper, a comparative study of the behavior of the metrics, when changes are made to a service, is presented. The metrics that are addressed use the elements of a WSDL document for their computation. These are complexity, cohesion and coupling metrics. The comparative analysis is performed by creating a common set of changes and studying the behavior of the metrics before and after changes. The results show that different metrics for the same property do not necessarily vary the same way.