The standards used to evaluate programs and projects. Some common evaluation criteria are: Relevance, Effectiveness, Efficiency, Impact and Sustainability.
(OECD Development Co-ordinator Directorate. "DAC Criteria for Evaluating Development Assistance. http://www.oecd.org/document/22/0,2340,en_2649_34435_2086550_1_1_1_1,00.html)
Evaluation is the systematic and objective assessment of a policy or program including its design, implementation and results. The aim is to determine the relevance and fulfillment of objectives, efficiency, effectiveness, impact and in some instances sustainability. (OECD 2002, 21-22)
Organisation for Economic Co-operation and Development (OECD) Development Assistance Committee Working Party on Aid Evaluation. 2002. "Glossary of Key Terms in Evaluation and Results Based Management." Paris: OECD Publications. http://www.oecd.org/dataoecd/29/21/2754804.pdf.