Development Cooperation Handbook/Designing and Managing Programmes/Program evaluation
A good programme design will consider how to monitor and evaluate during and after the implementation phase (in itinere and ex post). It will therefore decide what are the indicators and what are the sources of information for judging the efficiency, the effectiveness and the impact. Information sources may be independent from the programme/project management team and the organization. Programme designers will consider the standard methods of collecting and analyzing data and will adopt those that are seen as most suitable. Eventually a new approach may be proposed.
The topic is more extensively treated in ⇒ 
How do we Monitor and Evaluate Projects and Programmes?
See also
How do we Monitor and Evaluate Projects and Programmes? ⇒ Does international aid really benefits the target populations?
On other Wikibooks ⇒ Evaluating Development Cooperation
On Wikipedia ⇒ Evaluation
In Devcopedia - EuropeAid Wiki ⇒ Aid effectiveness