Middleware Migration Testing

Posted by Himanshu Mehrotra, Karambir Singh, Neha Jaiswal, Pradyumna Pal

What is Migration Testing?

Migration involves moving an old legacy application to a new platform. Migration testing, thus, involves complete analysis and understanding of the old application to gather requirements to be able to seamlessly make a transition to the new platform. When performing migration testing, the business functionalities of the application should not be affected, also it should be ensured that the end users have a seamless transition from the old platform to the new platform.

Overview of Middleware

Middleware is a connectivity software comprising a set of enabling services that support interaction of multiple processes running on different machines over a network to provide desired the business output. Middleware layer is the layer between hardware and application layer, providing services such as database management.

A majority of middleware programs provide messaging services to allow different applications to communicate via messaging frameworks such as Simple Object Access Protocol (SOAP) and Representational State Transfer (REST).

Middleware Migration Testing Approach

In the highly challenging market, middleware migration testing plays a pivotal role in the software life cycle. Companies working with paid software or tools are ready to migrate to open source platforms to reduce the cost of their solutions.

In such situations, middleware migration testing becomes crucial, as the team needs to understand the functionality of the old system first to make sure that the complete solution is migrated successfully. During migration testing, the QA team may refer to existing requirement documents or test cases for better understanding of the application. If the requirement documents are not available for reference, the QA team may have to rely on the old system code to analyze and understand the functionality of the application. Testing in these kind of migration projects can be a little challenging, initially, but once the team understands the functionality it would be easy for both QA and Developers to complete their specific tasks.

Commonly Used Tools for Middleware Migration Testing

SOAP UI, Oracle SQL Developer, SQL Server Management Studio, WinSCP, PuTTY, Software AG Designer (Web Method), Jboss Developer Studio and Jboss Fuse.

Challenges during Middleware Migration Testing

  1. As the QA team will analyze the old system code and functionality to get a better idea of the business and build their understanding of the application on it, performing pure black box testing might be difficult.
  2. High numbers of interface combinations complicate processing.
  3. No control over third party calls during processing.
  4. Middleware applications generally do not have GUI, while testers prefer a user-friendly testing interface.
  5. Environment dependencies are outside our control. DEV/QA environment, for instance, has access to dependent systems but when in production it might misbehave due to restricted functionality.
  6. High dependency on test data due to integration of multiple third party applications.

Making Middleware Migration Testing Easy for QA

  1. Adopting an agile project delivery approach.
  2. Hiring technically sound personnel for QA team so that they can easily understand the use of migration tools and ensure that legacy system issues are not migrated to the new system.
  3. The QA team should be involved in all aspects of the analysis and design of the migration so that they can prepare their test strategy and undertake detailed test case development during the analysis phase, and continue to refine and finalize their test cases during the design phase.
  4. Involving the QA team in early stages immensely helps in improving the overall quality of each phase of the migration project.
  5. The QA team should focus on automation testing throughout the lifecycle of the delivery as part of quality management strategy.

Middleware tools support integration of applications. Migration testing is not limited to middleware projects. It can also be done for DotNet and Java application and database, depending on the requirement. If you are considering transition to a future-ready middleware but are concerned about duration, reliability, process, risks involved, and expenditure, look no further than Xavient Information System. We offer seamless, reliable, accelerated, and cost-effective transition to next generation middleware by migrating from web method to newer open source platform such as Apache Camel, Jboss Fuse, and others.

With this we finish our explanation of middleware migration testing. Thank you for reading the post. Let us know about your experience in the comments below. We’ll soon be back with another interesting topic.


Until Next Time,


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