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Case study Thomson Reuters

How Thomson Reuters modernized legacy .NET applications with AWS Transform

Thomson Reuters used AWS Transform's agents to port old .NET Framework applications to cross-platform .NET and Linux. AWS reports faster upgrades and lower running costs.

The problem

Many applications still ran on the older .NET Framework. They were costly to maintain and slow to update, and engineers were spending a lot of time upgrading code by hand.

How they did it

  1. Ran AWS Transform's agents through asset discovery, codebase analysis, planning, refactoring and execution.
  2. Used the web interface to modernize many applications in parallel.
  3. Used the same agent capabilities inside IDEs for applications that needed a developer's close attention.
  4. Added re-authentication checkpoints for long-running jobs.

Results

  • As reported by AWS: Thomson Reuters modernizes '1.5 million lines of code every month — a 4x boost in velocity'.
  • Moving from Windows to Linux brought '30% lower costs'.
  • Transformation time went 'from months to just one two-week sprint'.
  • Technical debt was reduced 'by 50%' by moving to cross-platform .NET.

As reported by the source (AWS customer case study); AgentGid did not measure these figures.

Takeaway. Batch-modernize the simpler applications in parallel, and keep the complex ones in the IDE with a developer guiding the agent.
AgentGid's take

This suits larger engineering teams with a sizable .NET Framework estate, AWS familiarity, and developers who can review refactored code and handle the complex apps in the IDE. Keep in mind that the 4x velocity, 30% cost and two-week figures are all reported by AWS, so measure a small pilot before committing. AgentGid has no pricing or alternatives on file for this setup.

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