Why ETL Testing?

Techsum's ETL & Data Warehouse testing services include source to target and data completeness validations. An ETL tool Extracts the data from heterogeneous data sources (like relational databases, CSV, spreadsheets, etc.), Transforms the data (applying calculations, mapping data fields, etc.), and Loads it into a Data Warehouse system. You can then use various Business Intelligence (BI) tools to generate meaningful reports, dashboards, and visualizations.

Support for Big Data is growing continually and exponentially. Most ETL tools now provide data integration solution for Big Data. The primary objective of ETL testing is to identify and mitigate data defects and general errors that occur before processing of data for analytical reporting. ETL can pollute the entire system if done wrong. Being industry experts, we have the acumen in performing activities ranging from Reviewing Data model right up to Data integrity and quality checks in the target system.