Text of an evaluation manual prepared for the Deputy Assistant Secretary for Evaluation and Monitoring of the Department of Health, Education, and Welfare (HEW) to aid in building an effective evaluation structure for government programs and projects throughout the agencies of HEW. This guide is intended to assist evaluators in the development of a strategy--in determining when to evaluate, who should evaluate, and how to supervise the evaluation; how to allocate efforts among different types of evaluation; and how to assess evaluation. As per the HEW request, the guide avoids questions of methodology and concentrates instead on the decisionmaking context for evaluation. Suggested documentation includes an annual evaluation plan and statement of strategic objectives to be prepared by each evaluation office, a statement of rationale of each evaluation to be prepared by the initiating office, and critical program summary to be prepared by chief evaluation officers. 48 pp.