Automated Testing

Our Automated Testing solution alleviates the pain of manually developing test scripts for migrated online and batch applications within the scope of a modernization initiative. It also ensures functionally equivalent testing for efficient defect identification and rapid remediation. This reduces cost, resource burden, and modernization project timelines, ensuring optimal performance of the modernized estate in production.

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Testing 1, 2, 3: Eliminate manual test case creation

60 minutes

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Why modernize?


Scarcity of domain expertise

Developers who understand mainframe technology are reaching retirement age and no one is being trained to replace them, resulting in a steadily diminishing talent pool. As this shortage grows, the costs and risk of relying on the mainframe will continue to rise.

Limited flexibility

Companies are rapidly moving to modern environments and practices such as DevOps and the Cloud. The mainframe and the underlying systems that support it were not designed for modern IT. This results in difficult integrations and limited flexibility.


Exorbitant costs

Mainframes cost as much as 4,500 percent more to operate than equivalent Cloud counterparts. This figure is compounded by rising licensing and maintenance fees for ancillary mainframe applications and databases. 

Automated Testing


Testing is a critical phase of any modernization project and typically accounts for over 50 percent of the entire modernization effort. Although key business logic is retained through modernization efforts, the underlying applications are adapted to work within a new target operating environment. Thus, a detailed validation of the migration is extremely important, and the best means of achieving that validation is with thorough testing.

Testing is often burdensome to customers because subject matter experts are tasked with documenting step-by-step use cases for replication in the new environment. These subject matter experts are power users who have a deep working knowledge of the legacy operating environment and are often business-facing and non-technical. This combination of circumstances can result in oversight and miscommunication in test execution, which adds significant time and effort to modernization projects.

Our Automated Testing solution provides customers with a tool to trace actions in online applications on the mainframe using IBM PCOM (or another TN3270 emulator). It also offers a means for recording, executing, and comparing batch jobs across the source and target operating environments. This automation removes the human element from key activities, reducing the potential for miscommunication and decreasing the time it takes to develop and execute comprehensive test cases.

Batch testing

Using the Automated Testing solution, mainframe assets, including source code and job scheduler definitions, are populated into our Modernization Platform-as-a-Service (ModPaaS), which is integrated into the CI / CD test pipeline.

The ModPaaS engine then parses and analyzes batch assets, determines batch streams, and generates batch test assets (test scripts, test cases, etc.). These test assets are executed against the mainframe (source) environment and the target environment. The results of which are compared using our Automated Testing toolset, which generates reports and insights for review in a centralized dashboard.

Online testing

Subject matter experts connect to the test environment using a terminal emulator, where our Automated Testing solution records sessions. These recordings are encrypted and transferred to ModPaaS, where the 3270 trace files are replayed and processed. Test cases for the target environment are automatically generated from these recordings, passed to the CI / CD test pipeline, compared using our Automated Testing toolset, and presented by way of our centralized monitoring dashboard.

Learn more

Over 35 years of COBOL and mainframe modernization experience

More than 500 successful modernization projects completed

Over 2.5 billion lines of code refactored through automation

Additional insights to help you modernise


  • 2021 Mainframe Modernization Report

    Explore the the impact Covid-19 is having, and will continue to have, on modernization plans, and the case for application modernization among large enterprises with annual revenues over $1 billion.

    Read report
    an image associated with2021 Mainframe Modernization Report Report
  • Know the details, reduce the risk

    This whitepaper gives an in-depth explanation on why a detailed assessment of legacy applications and databases is essential for proper strategic modernization planning and decision-making.

    Read whitepaper
    an image associated withKnow the details, reduce the risk Whitepaper
  • So, what is Automated Testing?

    Blog Read blog
  • Live Discussion: The 2021 Mainframe Modernization Business Barometer Report

    Webinar Watch on demand
  • How cloud migration can help your organization to go green

    Blog Read blog
  • Know the details, reduce the risk: How to begin your mainframe modernization journey

    Webinar Watch on demand

News & Opinions

BLOG // 29-07-2022

Webinar Recap: Modernizing your Natural/Adabas for a more secure future

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

Webinar Recap: Modernizing your Natural/Adabas for a more secure future

Data Security & Application Modernization

Data security is an increasing concern for organizations across the globe, and it is also a major driver for selecting modernization strategies and cl…

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

BLOG // 30-06-2022
Data Security & Application Modernization

The state of legacy IT skills shortages

The recent pandemic seems to have jump-started a season of rapid change in IT, and companies with legacy systems are feeling this shift the hardest.

by Rob Anderson, Vice President of Marketing and Product for Application Modernization

BLOG // 10-06-2022
The state of legacy IT skills shortages