Data Warehouse Testing Services

Complex industrial solutions need the power of data warehouses for efficient functioning. To ensure that ETL processes work according to your business rules, you will need expert help to check your data warehouse performance, and scrutinize your reports and dashboards to ensure your BI solution delivers trustworthy information that is business-critical.

Here’s what we do

ETL testing

SideliningETL can cause severe data harm, which may be altered inadequately or lost on the way, resulting in misleading insights and faulty business decisions.

Our certified SQL testing engineers use their experience to render a data-centric approach and validate the data at every entry point. We run ETL testing suites to identify duplicates and reduce redundancy, avoid spot missing foreign keys, check that the transformation goes according to your business rules and ensure that the source and target data is consistent.

If the data stored in a DWH is of great volume or variation, our team offers automated ETL testing of your DWH using the following tools:

BI Testing

To power sure shot business decisions, data quality should be maintained consistently:

Data integration should be done using online analytical processing (OLAP) cubes. We make sure OLAP operations (roll-up, drill-down, slicing and dicing, pivot) work as scheduled giving reliable results with continuous monitoring.

Data presentation in reports and dashboards is done when our testing engineers compare the data and its format in the DWH and in the reports and dashboards to make sure they deliver trustworthy information. We also check rendering time of your reports and dashboards to make sure it aligns with your requirements and adheres to compliance policies.

DWH performance testing

Our testing engineers run comprehensive performance testing processes (stress, load, scalability and stability testing subtypes) to detect possible bottlenecks and make sure your data warehouse handles the increasing number of users and/or the growing data volume from data sources while successfully dealing with multiple users performing various operations simultaneously.

DWH security testing

Data warehouses contain critical business information (data on clients and employees, enterprise financial data, partner information, etc.) that needs enhanced security &protection. We run DWH security tests to check,

Our expert testing team will ensure the data security measures you use effectively protect your business data, as specified in your security requirements.We do the following for both generic and targeted DWH Testing.

Challenges we solve

Huge amounts of data, data types and data variations

Our DWH testing engineers meet this challenge by thoroughly filtering and selecting the most relevant data samples to create quality test data. They also run performance testing to make sure large amounts of data don’t slow down the query execution time.

Time-dependent data meaning is changing with time

Our testing experts will prepare representative data samples covering the necessary period (2+ years) and load them to the test environment. We address time-dependent data with continuousadditions to data sets to represent a particular feature of your DWH adequately.

Multiple variations in OLAP

OLAP allows applying various filters, dimensions and measures, which creates a multitude of scenarios to be tested. To manage the testing process efficiently, our testing engineers draft a traceability matrix, which shows the test coverage for each dimension and measure and helps prevent under-testing or over-testing.

Lack of Business-specific Coverage

Testing some DWH components (OLAP cubes and reporting) requires deep business understanding. Our testing engineers apply their cross-industrial and professional knowledge in 10+ domains, including retail, healthcare, banking and financial services, manufacturing, and more, to ensure that your solution is made fully functional in lesser time.

Want to use information confidently to multiple business use cases and improve your success rate? Call our DWH testing experts to get the best help from our testing centre of excellence.