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Lefebvre Dalloz: Moving from technical debt to strategic velocity in 3 months

Accelerated migration by AI from an OpenRoad ERP (by Actian) to Angular & Spring Boot.

Context

For years, our client, a French publishing house, used an ERP system developed with proprietary Actian OpenRoad technology. Over time, the system became dependent on rare technical skills, holding back innovation.
When licensing costs suddenly doubled, maintaining this outdated system became both financially and operationally unsustainable.

To reduce costs and modernize its IT infrastructure, the company decided to migrate to a Spring Boot/Angular architecture. Faced with an initially too long migration period, she called on Theodo to speed up the process using AI.

Challenges

  • Extract business rules and map dependencies from a monolithic system described in a 1 million line XML file.
  • Ensure a secure migration while maintaining functionality and minimizing interruptions.

Our approach

Theodo's AI experts - a Lead PM, an AI Engineer, and Software Engineers - joined the client's IT teams to accelerate the migration.

Here's what made the difference:

Just-in-Time

AI-powered migration accelerator: a custom tool for extracting business rules, revealing hidden dependencies, and mapping data flows from OpenRoad ERP to the new Spring Boot/Angular architecture. This tool has made it possible to significantly reduce the analysis time.

Right First Time

AI multi-agent workflow: orchestrated around smaller components and specialized tasks managed by dedicated agents, aligned with the new target architecture. This approach allowed for a 10x faster migration without compromising code quality.

“In three months, we've turned a legacy burden into a leap forward - modern stack, reduced costs, and increased pace of innovation. A major victory for us!”

Our impact

3 months

Full system migration to Angular/Spring Boot.

1300

developer days saved during the migration.

€150,000

annual savings on ERP maintenance.

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