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data_quality_dimension:accuracy [2023/03/24 17:56] peter |
data_quality_dimension:accuracy [2024/03/08 13:33] (current) |
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===Definition=== | ===Definition=== | ||
- | Accuracy of a data value is the degree of closeness of [[data_concept: | + | Accuracy of a data value is the degree of closeness of [[data_concept: |
===Relation=== | ===Relation=== | ||
- | Accuracy is a [[general_term: | + | |Accuracy|is a [[general_term: |
+ | |Accuracy|is an instance of a|[[data_quality_general/ | ||
+ | |||
+ | ===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 john@mail.com. If you draw a sample from your database, you can make statements about the accuracy of all the data in the database. | ||
===Examples=== | ===Examples=== | ||
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The name should be written as Janssen with double ' | The name should be written as Janssen with double ' | ||
- | ==Wrong unit== | + | ==Old adress== |
+ | ^ Employee name ^ Place of living^ | ||
+ | |John Steward | ||
+ | John has moved meanwhile to New York. | ||
+ | |||
+ | ==Wrong unit of measure== | ||
^ Product name ^ Weight in gram^ | ^ Product name ^ Weight in gram^ | ||
| Pack of suger |1| | | Pack of suger |1| | ||
- | The weight | + | Weight |
===Reference(s)=== | ===Reference(s)=== | ||
DAMA NL (2020). Dimensions of Data Quality (DDQ). Research paper. https:// | DAMA NL (2020). Dimensions of Data Quality (DDQ). Research paper. https:// | ||
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+ | {{tag> | ||