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Legacy Modernization

Market pressures demand organizations to have business applications that align with business objectives. However, many legacy applications are built on inefficient and un-scalable technologies that are not equipped to meet the evolving and dynamic business needs. As a result, enterprises run the risk of losing the market advantage to competitors.

These challenges have made it imperative for organizations to develop the right application modernization strategy, which can adapt to new market conditions promptly and quickly.

Business Challenge

Legacy modernization (also called migration or re-engineering) projects have no requirements or minimal documentation about the application. This poses great risks on ensuring there is no loss of critical functionality during migration.

The most important thing is to ensure functional compatibility with the legacy system, even though the new design is totally different. Thorough testing is possible only after gaining functional knowledge or achieving complete understanding of the application, because only then will the team be able to determine whether the target application satisfies all the requisite functions.


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Kumaran Test Methodology for Legacy Modernization

Kumaran has defined and organized an automation framework model which will make automation easy. This framework is designed such that anybody can use it and automate the business process validation in easy steps.

Legacy Modernization may be done in different ways. In some cases, the new system has the same business rules; only with design changes. In some other cases the business rules change in addition to the design. Actually, some rules stay the same and others are revised to reflect improvements in the way of doing business.

As there are no requirement documents or any kind of functional support documents, Legacy Modernization projects demand people to acquire functional knowledge by working with the source application and transform the same into target application.

In such situations, there is a need to revise the traditional testing approach.

Kumaran Software Testing Services has gained tremendous expertise in Legacy Modernization projects, because we have been providing testing over the years. Today, we are adept in delivering exceptional results to clients.

Methodology with Three Major Phases

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Analysis Phase
During analysis phase, we shall identify business functions from the available documentation, from the source application, or whatever functional knowledge individual client possess. Source code of the legacy application needs to be analyzed with the help of coding experts, if necessary.

Planning and Design Phase
Planning and design phase addresses test plan preparation, test strategy formation, and test case preparation. Test data will include both existing data and new data, so that there are no deviations in the target application behavior, which is relevant to data as that of source application.

Operational Phase
The operational phase addresses the execution of the test cases, along with parallel testing. Deviations are logged as bugs in bug tracking tool and followed up for closure. Test summary report will be prepared at the end of final regression test.

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Key Benefits

  • Business-critical scenarios are identified that are currently invisible or not documented. This can be used later for enhancements or various other tests.
  • Functional or Acceptance test cases are available for the target application.
  • Application is tested by Legacy modernization testing experts.
  • A robust and proven test methodology ensures reduced risk and cost for legacy modernization testing.