What are the different types of ETL testing?

There are several types of ETL testing, including: 1. _Unit Testing_: Testing individual ETL components, such as transformations or mappings. 2. _Integration Testing_: Testing how ETL components interact with each other. 3. _System Testing_: Testing the entire ETL process from end to end. 4. _Data Validation Testing_: Verifying data accuracy, completeness, and consistency. 5. _Data Transformation Testing_: Testing data transformations, such as aggregations or conversions. 6. _Data Mapping Testing_: Testing data mappings between source and target systems. 7. _Performance Testing_: Testing ETL process performance, scalability, and efficiency. 8. _Error Handling Testing_: Testing how ETL processes handle errors, exceptions, and data quality issues. 9. _Data Lineage Testing_: Verifying data lineage and traceability. 10. _Security Testing_: Testing ETL process security, data encryption, and access controls. 11. _Regression Testing_: Testing changes to ETL processes to ensure they don't impact existing functionality. 12. _Acceptance Testing_: Testing ETL processes to ensure they meet business requirements and user acceptance criteria. 13. _Data Quality Testing_: Testing data quality, data cleansing, and data standardization. 14. _Metadata Testing_: Testing metadata, such as data definitions, data types, and data relationships. 15. _Compliance Testing_: Testing ETL processes to ensure compliance with regulatory requirements and industry standards. Each type of testing focuses on specific aspects of ETL processes, ensuring comprehensive testing and validation. read less