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data_quality_dimension:accuracy

Accuracy

Definition

Accuracy of a data value is the degree of closeness of data values to real values.

Relation

Accuracyis a characteristic of a data value
Accuracyis an instance of adata quality dimension

Note

Accuracy can be determined, by comparing data in your database with a real-world measurement. For example, you could call a customer and ask if his email address is still [email protected]. If you draw a sample from your database, you can make statements about the accuracy of all the data in the database.

Examples

Wrong name
Name
Jansen

The name should be written as Janssen with double 's'.

Old adress
Employee name Place of living
John Steward Washington

John has moved meanwhile to New York.

Wrong unit of measure
Product name Weight in gram
Pack of suger 1

Weight should be 1000 (gram) instead of 1 (kilogram).

Reference(s)

data_quality_dimension/accuracy.txt · Last modified: 2023/10/21 19:02 by peter