The terms of reference (ToR) document defines all aspects of how a consultant or a team will conduct an evaluation. It defines the objectives and the scope of the evaluation, outlines the responsibilities of the consultant or team, and provides a clear description of the resources available to conduct the study. Developing an accurate and well-specified ToR is a critical step in managing a high-quality evaluation. The evaluation ToR document serves as the basis for a contractual arrangement with one or more evaluators and sets the parameters against which the success of the assignment can be measured.