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correlation between the outcome and the resources used

a measure of the utilization of resources to realize a given objective

Note 1 to entry: An activity is efficient if it minimizes the use of resources, or produces better performance with the same resources.

[SOURCE: ISO 11620:2014, definition 3.16]ISO 5127:2017(en),

output work divided by input work

[ ISO 15551-1:2015 (en), 3.45]

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