Data Management
“The beginning of wisdom is the definition of terms.”
“The beginning of wisdom is the definition of terms.”
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Adress | Postcode | City |
---|---|---|
Veldweg 11 | 8051 NK | Hattem |
Postcode doesn't match with adress.
Data quality rule: The postcode matches the address according to the postcode table
ID | Customer | City name | |
---|---|---|---|
248 | Johson | Alphen aan den rijn | |
2342 | Smith | Alphen a/d rijn |
Different spelling of city name.
Data quality rule: City names are spelled out in a uniform manner.
ID | Initials | Name |
---|---|---|
4320 | T | Sanders |
ID | Initials | Name |
---|---|---|
4320 | T.M.D | Sanders |
Inconstistency: Different initials of the same customer. Data quality rule: Initials of the same person are the same.
DAMA NL (2020). Dimensions of Data Quality (DDQ). Research paper. https://www.dama-nl.org/wp-content/uploads/2020/09/DDQ-Dimensions-of-Data-Quality-Research-Paper-version-1.2-d.d.-3-Sept-2020.pdf