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Accuracy

1 Definition

Closeness of agreement between a measured quantity value and a true quantity value of a measurand.

Notes

• In essence, Accuracy reflects how close measurements are to the accepted Value, while precision gauges the reliability and consistency of those measurements.

Examples

Sources

• BS ISO 5725-1

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2 Definition

Closeness of agreement between a measured quantity value and a true quantity value of a measurand.

Notes

Examples

Sources

• VIM [ RD18 ], GUM [ RD4 ]
• Definitions used in other communities
• ACIX community
• [Community, not standard, definition]
• Used in the atmospheric correction community to represent the average difference between the modelled and measured quantities