Natural Migration

Our Automated Natural Refactoring solution delivers modern, Cloud-enabled applications and databases that are functionally equivalent to their legacy counterparts, eliminating the hassle and expense of Natural, Software AG licensing, and the mainframe. This reduces cost, allows for deeper integration, and enables customisation to meet business requirements.

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Discussing the 2022 Mainframe Modernisation Report

60 minutes

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Why modernise?


Scarcity of domain expertise

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

Exorbitant costs

Mainframes running Natural cost as much as 4,500 per cent more to operate than equivalent Cloud counterparts. This quandry is compounded by Natural and Adabas' rising licensing and maintenance fees.

Limited flexibility

Companies are rapidly moving to modern environments and practices such as DevOps and the Cloud. Natural, Adabas, and the underlying systems that support them were not designed for modern IT, resulting in difficult integrations and limited flexibility.

Automated Natural Refactoring


Our Automated Natural Refactoring solution preserves the benefits of legacy systems while empowering organisations to leverage the advantages of newer platforms, especially the Cloud. This unlocks a whole new world of quality and scalability from automated testing to quality assurance, and the ability to leverage containerised deployments and orchestration with Docker and Kubernetes.

Many Natural transformation solutions create structurally similar programs in the target language but require additional re-engineering efforts to yield desired results. Our Automated Natural Refactoring solution, harnessing a powerful combination of our Application Transparency Platform (ATP®) software and an iterative transformation methodology, delivers a modern Java or C# application based on fully maintainable open systems.

Our Automated Natural Refactoring process was designed with the following requirements in mind:

  • Refactored applications must remain functionally equivalent to their original counterparts
  • Refactored applications must be easily maintainable, attain SonarQube A ratings, and follow object-oriented concepts and paradigms
  • Refactored applications should perform as well as, or better than, the original applications
  • Refactored applications should be Cloud-ready and delivered using a standard DevOps toolchain and best practices

Once the Natural applications and associated databases are refactored, Java and C# developers can extend application functionality for Cloud optimisation using standard DevOps tools and CI/CD concepts that simply aren’t available for mainframe applications. Precious business logic from the legacy system is preserved, while levels of optimisation can be applied to deliver efficiencies and business benefits such as elasticity, granular service definition, and easy integration with Cloud-native services.

Optional self-service Natural modernisation

ATP, the software behind our Automated Natural Refactoring and Natural Rehosting solutions, can be licenced and utilised by customers or partners for self-service modernisation initiatives as an alternative to our turnkey Automated Refactoring service. Natural code is loaded into ATP where developers can selectively refactor segments of code (programs, business rules, subroutines, etc.) within the environment at their leisure. It can be used indefinitely as a Natural rehosting environment, taking advantage of the Natural coding skills which already exist in-house. It can also be a steppingstone on the path to a Java or C# migration by way of ATP’s 'Save As' feature. Customers who elect self-service Natural modernisation with ATP typically use our Automated Data Migration services to extricate their legacy environments from Adabas and migrate into modern relational models.

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Over 35 years of Natural and mainframe modernisation experience


More than 500 successful modernisation projects completed


Over 2.5 billion lines of code refactored through automation


Intelligent modernisation, unparalleled experience


Additional resources to help you modernise



Evolving away from Software AG

This whitepaper outlines how our Natural rehosting and refactoring solutions help you embrace the future and eliminate SAG licensing fees.

Read whitepaper





Natural/Adabas migration strategy

Discover considerations for mapping a migration path, and how to modernise Natural/Adabas applications for a more secure future.

Watch on demand





2022 Mainframe Modernisation Report

Exploring the impact of the new era of digitalisation and change on the current state of legacy systems and organisations' modernisation plans.

Read report



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29 Jul 2022 by Rob Anderson, Vice President of Marketing and Product, Advanced

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11 Aug 2021 by Rob Anderson, Vice President of Marketing and Product, Advanced

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15 Jun 2021 by Rob Anderson, Vice President of Marketing and Product, Advanced

News & Opinions

BLOG // 13-02-2024

How DevOps is influencing mainframe modernisation strategies

by Tim Jones, Managing Director - Application Modernisation

How DevOps is influencing mainframe modernisation strategies