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Data Warehouse and ETL Testing Services


Historical data is becoming a key tool for decision-making at enterprises of all levels. With burgeoning data, most organizations are investing in building a robust data warehouse using the latest tools. However, testing the data accuracy, performance, and security becomes complicated and needs a comprehensive approach to ensure the success of your DW and BI implementation.

TestingXperts has extensive experience in Analytics Testing, DW, and Big Data testing engagements and addresses the unique challenges of DW and Big data analytics testing. We test the DW applications at all levels, starting from data source to the front-end BI applications and ensure the issues are detected at the early stages of testing. We ensure that the Big Data testing solution is adequately automated and scalable to meet future business needs.


Tell us about your QA challengesWhy TestingXperts(Tx) should be the top choice for reliable QA solutions

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Our Testing approach includes the following strategies

  • Performance / Security Testing
  • Audit Report / Data Quality Report
  • Business functionality testing
  • Automated ETL data validation
  • Test Optimization using proven methods

And using the above approach, we achieve the following

  • Extensive test validation and coverage
  • Thorough validation of data quality in the Data Warehouse
  • Continuous validation of ETL
  • Extensive validation of BI reporting

TestingXperts Differentiators

  • Extensive experience testing large complex DW and BI implementations.
  • Customized approach to ensure data accuracy at various levels of the DW/BI chain.
  • End to end service offerings for DW/ BI including data validation, performance, and security of DW and BI.
  • Partnership with QuerySurge for automation of DW verification process.
  • Highly skilled professionals in DW/BI for designing test strategy and project execution.
  • Cost-effective and flexible solution for your DW/BI testing needs.




We are certified partners of QuerySurge, a collaborative Data Testing solution that helps to find bad data and provides a holistic view of your data’s health. These are some advantages we bring to engagements with QuerySurge:

  • Compare data from source data files & data stores to the target Data Warehouse or Big Data store.
  • QuerySurge automates the Data Warehouse and ETL.
  • Improves Data Quality.
  • Integration for Continuous Delivery (CD).
  • It allows us to Create Test QueryPairs fast & easily without writing any SQL.

Create reusable snippets in our Design Library

  • Schedule tests to run immediately, any date/time or automatically after event end
  • Reporting via auto-email.

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