What is Data Consistency? Definition, Examples, and Best Practices

Data consistency is one of ten dimensions of data quality, ensuring that two or more values in different locations are identical. It has a significant impact on business success and decision-making processes. Inconsistent data can lead to low data integrity and incorrect decisions based on misleading information. To measure data consistency, you can track the number of passed checks for uniqueness of values, entities, corroboration within the system, or referential integrity maintenance. Anomaly detection is a method to ensure data consistency by identifying unexpected values or events in a dataset. Proper data management and tracking are crucial to maintaining data consistency and ensuring accurate business decisions.