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ETL/ELT Workflow Testing

About ETL/ELT Workflow Testing

About ETL/ELT Workflow Testing illustration

The reliability of your business intelligence depends entirely on the quality of your data pipeline. Our ETL/ELT Workflow Testing service ensures the integrity of this critical process from end to end. We meticulously validate every stage: verifying that data is Extracted completely from source systems, ensuring all Transformation logic and business rules are applied correctly, and confirming that data is Loaded into your target data warehouse without loss or corruption. We test for data accuracy, completeness, and adherence to schema. Whether you use a traditional ETL or a modern ELT approach, our comprehensive testing builds trust in your data, validates your business logic, and ensures that your analytics are built on a foundation of quality.

Our Framework

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Step 1

Data Mapping & Logic Review

We begin by understanding your business requirements and data mapping documents. We analyze the source-to-target mappings and the specific business rules that must be applied during the transformation phase of the workflow.

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Step 2

Source Data Extraction Test

We perform validation to ensure the data extraction process is working correctly. This includes comparing record counts and checksums between the source systems and the staging area to guarantee no data was lost or duplicated.

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Step 3

Transformation Logic Testing

This is the core of the process. We write and execute detailed test cases to validate that all business rules, calculations, aggregations, and data joins are implemented correctly during the transformation stage.

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Step 4

Target Data Loading Test

We verify that the transformed data is loaded accurately into the target data warehouse or database. We check for data truncation, ensure data types are correct, and validate that the target schema is respected without errors.

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Step 5

End-to-End Reconciliation

Finally, we perform an end-to-end reconciliation. We compare the data in the final target tables against the original source data to confirm that the entire workflow has maintained data integrity, completeness, and accuracy.

Our Expertise

Our Expertise illustration
1

Ensure Complete Trust in Your Data

Make business-critical decisions with confidence. Our rigorous testing ensures the data in your analytics platforms is accurate, complete, and reliable.

2

Validate Complex Business Logic

Your ETL/ELT process is where your business rules are encoded. We ensure these complex transformations and calculations are implemented exactly as intended.

3

Prevent Downstream Data Corruption

A single bug in your ETL workflow can corrupt your entire data warehouse. We catch these issues at the source, protecting your most valuable data asset.

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Take the next step towards efficient, reliable, and comprehensive testing solutions.

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