A measurement, statistic or value that provides a proximate gauge or evidence of the effects of environmental management programs or of the state or condition of the environment. (Source: GEMET/EPAGLO)

An indicator is a quantitative or qualitative factor or variable that provides a simple and reliable means to measure achievement, to reflect the changes connected to an intervention, or to help assess the performance of a development actor. (Source: OECD-DAC)

Broader: LEO Thesaurus
Alternative labels:
performance indicator
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