![Solix Enterprise Data Management Suite Standard Edition Data Validation 2.2 Quick Reference Guide](https://test2.solix.com/documents/documentation/res-image/solix-enterprise-data-management-suite-standard-edition-data-validation-quick-reference-guide.jpg)
Data warehouses are usually built on multi-tier architectures with multiple data extraction and insertion jobs between two data bases. The nature of data changes when they pass from one tier to another. Data Validation is a process of comparing records across different databases to ensure that the data is consistent