The toolkit is a supplement to the UNFPA programming guidelines. It provides guidance and options for UNFPA Country Office staff to improve monitoring and evaluation activities in the context of results-based programme management. It is also useful for other programme managers at headquarters and national levels. Many of the approaches described in this toolkit can be used as well for programme1 strategy development. This tool defines the concept of evaluation, what it is and why we evaluate, the role of evaluation in relation to monitoring and audit, and its role in the context of results-based management approaches (RBM). The content is based on a review of a wide range of evaluation literature from academia and international development agencies such as UNDP, UNICEF, WFP, OECD and bilateral donor agencies such as USAID. Source: UNPAF Defining Evaluation Tools