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Tools 
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To execute data quality controls, the following functionalities need to be implemented using **open source tools**, **SQL scripts** or existing in the enterprise **data governance / data management** tools: 

* Data quality **rule logic implementation** (example: checking that a given data complies to a specific condition)
* **Result logging** (example: logging the result of the check - passing and failing lines)
* **Qualifying the result** compared to defined thresholds (example: the result is OK given the number of passing lines)