ETYM Cf. French évaluation, Late Lat. evaluatio.
1. Act of ascertaining or fixing the value or worth of; SYN. rating.
2. An appraisal of the value of something; SYN. valuation, rating.
A periodic assessment of the efficiency, effectivness, impact, sustainability and relevance of a project in the context of stated objectives. It is usually undertaken as an independent examination of the background, objectives, results, activities and means deployed, with a view to drawing lessons that may guide future decision making. An evaluation of a project assesses the degree to which the goals and ob-jectives were met.

The determination, by a program, of the value of an expression or the action that a program statement specifies. Evaluation can take place at compile time or at run time.