The systematic and objective assessment of an on-going or completed project, programme or policy, its design, implementation and results. The aim is to determine the relevance and fulfilment of objectives, development efficiency, effectiveness, impact and sustainability

A continuing function that uses systematic collection of data on specified indicators

An assessment of the performance of an intervention, periodically or on an ad hoc basis. In the context of the 2030 Agenda, it is used more broadly to designate processes, systems and institutions at sub-national, national, regional and global levels