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7 Strategies on Data Migration Testing you Need to Know

There are a wide array of times when with the advancements in technology, an application has to be transferred to a different server. You may need to update the same to the latest version where there may be requirements for transferring the same to a varied data server. 

From the testing approach, the application needs to be tested in addition to the migration. In such cases, you need to perform system testing. The data migration testing needs to be conducted with new data or even the old data. The existing functionality should be verified in addition to the modified or new functionality.

The data migration testing is inclusive of testing with the new data, the old data or the combination of both. It also includes testing of the old as well as new features. The old application is referred to as the legacy application. 

In addition to the upgraded or new application, it is a prerequisite to test the legacy application till the upgraded or new ones become consistent and stable. The extensive migration testing will be revealing a new problems which were not found in the source application.

Benefits of migration testing

Migration testing is regarded as the verification procedure to transfer records from the old system to the new one with the least downtime, no loss or corruption of data, data integrity. 

It also ensures that the non-functional and functional aspects of the data application are achieved after the migration of data. The data migration testing is done for a wide array of reasons. It plays a vital role in reducing any inconvenience or disruption which is caused owing to the migration. 

Thus, migration testing plays a vital role in reducing or avoiding data migration. It is also conducted to make sure that in case the end-user continues to use every feature of the specific application, there is no damage or least damage.

Thus, migration testing is done for ensuring a smooth migration. It also helps in ensuring compatibility of the upgraded or new application with possible software or hardware, supported by legacy application. In addition to this, the testing is done to ensure compatibility in the latest software and hardware platform.

It is also useful in making sure that all the connection between software, hardware, and software are intact and do not break during the testing process. 

The flow of data between various components should not break under any circumstances. In addition to this, it is useful in ensuring if the system response time of the upgraded or new application is less or the same than the time required for the legacy application. 

The chances of defects owing to data migration can be high. With data migration testing, it is possible to identify as well as fix those defects at the time of data migration testing.

Data Migration Testing Strategy

Designing the specific strategies for data migration is inclusive of a different set of activities which need to be performed. It is beneficial in reducing the risks and errors during migration and ensuring that the migration testing is being conducted efficiently.

Here is a list of few of the strategies of data migration testing, which you need to know

Specialized formation of the team

The testing team should have the prerequisite experience and knowledge about the application. You need to offer the prerequisite training to them about the specific application which is going to be migrated.

Error analysis and business analysis

The current operations of the business should not be hampered after the process of migration. Hence, it is necessary to carry out the meetings of the business risk analysis which involve the right stakeholders such as the business analyst, test manager, product owners, architects, business owner. 

It is also useful in identifying the potential risks as well as the implementable mitigation's. The testing should be inclusive of scenarios for uncovering the specific risks and verifying whether the right mitigation's have been implemented.

Finding the right tools for migration

At the time of defining the specific strategy for data migration testing, manual or automated, you require identifying the specific tools which should be used.

Identification of the right test environment

It is a prerequisite to identify the separate environment for post and pre-migration environment for carrying out the right verification which is necessary as an integral part of testing. 

Documenting and understanding the technical aspects of target and legacy is essential to make sure that the test environment has been set, according to that.

Migration Test Specification Documentation and reviewing

You require making preparations for the migration test specification document which states the specific areas of testing, test approach, testing methodology such as white box or black box testing, testing methods, schedule of testing, number of cycles of testing, approaching the creative data, use of live data, tester qualification, test environment specification and conducting the review sessions while having the stakeholders on board.

Production launch of the migrated system

In this strategy, it is necessary to document as well as analysis the to-do list for product migration after which it should be published properly.

Stages of migration testing

Here is a list of a different phase of data migration testing

Pre-Migration Testing

Before the migration of data, it is necessary to conduct a set of testing activities as an indispensable part of the pre-migration stage. In this stage, a clear data scope of the set which involves the data that should be included, the data that should be excluded and the data which require conversion or transformation.

Migration Testing

In this stage of migration testing, you need to find out whether the document is clear and can be followed at ease. Here, all the steps and scripts should be documented without any ambiguity properly. You need to consider the miss matches, documentation errors for the execution of migration testing.

Post-migration testing

This phase is accomplished after the migration process is over. IN the testing environment, end to end system testing is accomplished. Here, the tester is known to execute different test scenarios, identified test cases, user cases with the new data set and the legacy data. 

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