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Also KPI. A KPI is a criterion by which an organisation can determine, quantitatively or qualitatively, whether the outcome associated with a capability exists or the degree to which it exists. A key performance indicator can be a direct measurement or an expert assessment. When a key performance indicator is quantitative, involving direct measurement, a form of metric is required. A metric is a measurement of something. Something tangible, such as an error count, can be measured directly and objectively. Something intangible, such as customer satisfaction, must first be made tangible – for example, through a survey resulting in ratings on a scale – before it can be measured. A metric can be binary (something exists or does not exist), it can be more complex (such as scaled rating), or it can be monetary (such as financial return).