Data Migration and ETL Testing

Despite the cost and efforts required to build a Data Warehouse, your business will get massive benefits from it. In the past, ETL projects that have failed to obtain the expected benefit is due to lack of quality assurance. Data migration and ETL must be vigorously tested to ensure that data / information is intact during migration from heterogenous sources to data warehouse. Additionally, the tests should also ensure that transfer rules are properly followed and in accordance to validity checks.

The benefits of having ETL testing is to identify issues with data source during the early stages. Such issues include if the transfer is done properly, ambiguities or inconsistencies during data transformation. ETL testing should be conducted regularly to ensure that end results are consistently accurate and complete during the extraction, transformation and load processes. You will get one of the best services from us in data migration testing.

One of the critical factors for you to make decisions for your company is historical data. A lot of organisations spend a lot of money in developing a robust data warehouse that operates using cutting edge tools as a result of burgeoning data. This translates to complex task in terms of conducting testing the performance, data accuracy and security. Therefore, you will need a complete approach in order to have a successful DW and BI implementation.

At Livingston IT, we are experienced in analytics testing, DW and Big Data testing engagements. We are also able to provide solutions for any issues arise from Big Data analytics testing and DW. Our company are more than capable of testing all aspects of DW applications, from data source to the front-end BI applications. This will iron out any problems early on. We will implement automated testing solution for Big Data and ensuring that your future business needs are met.

What we have

Highly experienced in testing large and complex DW and BI implementation
Bespoke testing strategy to ascertain data accuracy across all aspects of the DW/BI chain
Look after you from start to finish for DW/BI works such as performance, data validation and security related to DW / BI
Top DW/BI professionals on your side in developing test strategy and project execution
Bespoke solution for your DW/BI testing needs at a reasonable price

What we offer

Source to Target Validation – We conduct record count validation to ensure that data between source and target systems are consistent
Metadata Testing – We perform verification test to ensure table definitions are in accordance to the data model and design specification of the applications. This means we will conduct checks on data length, index, type and constraint
Making sure that the necessary data type and length exist within the target system
Verification process on indexation of unique and foreign key in accordance to index checks
Constraint checking - ensuring that columns have “NOT NULL” constraints when they should not have null value
Data warehouse testing - we conduct tests on dimension and fact. For this, we conduct validation on the presence of appropriate relationship between dimension and fact tables.
Data transformation testing – In accordance to mapping document by verifying correct implementations of business rules and transformations as well as being loaded into the target systems
Data quality testing – Ensuring that all data quality rules are properly applied
Integration testing – The final check, where we check from start to finish to ensure that the data flows correctly between the upstream and downstream of the systems

Phone Us