We propose SAGE (Service Oriented Architecture Governance Evaluation) as a quantitative approach, to evaluate the impact of SOA governance policies on prominent quality attributes. Our approach facilitates an exhaustive quantitative impact analysis to evaluate the effectiveness of SOA governance policies. This can be further used to estimate the current maturity level of any SOA based enterprise. The use of SAGE at an initial stage will help to make SOA management more structured and effective. Keywords SOA Governance, Policies, Evaluation, Quality attributes, Analytical Hierarchy Process