To be useful, evaluations have to be sufficient rigor that they are credible. Also, they must be timely -- that is, available when needed for decisions making. One way of addressing the "timeliness" issue is through the adoption of a phased approach for the conduct and reporting of evaluations. Under this approach, studies are broken into discrete phases, each addressing and reporting formally to the client on specific evaluation issues and each laying the groundwork for the next phase. Thus, management does not have to wait until the completion of the entire study for timely information and analysis on these issues. Completion of each phase provides a decision point on whether to proceed with the ext phase, and if so, in what specific manner.