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Use Case – Reducing application integration complexity with Event Streaming

Context

The IT department of a multi-site industrial group was dealing with a fragmented information system : MES, ERP, CRM, and various business-specific applications… most of them connected through outdated point-to-point interfaces.

Key challenges reported by teams:

  • Rigid and unreliable inter-application communication

  • Data duplication and synchronization issues

  • Delayed time-to-market due to heavy integration projects

  • Rising costs of maintaining legacy interfaces

The goal was clear: find a smoother, more scalable, and resilient approach to connect applications—without rebuilding everything from scratch.

Our approach – A hubadviser consultation with a real-world success story

We organized a strategic session with Pierre Le Stunff, CTO at Fortuneo, around a central question: “How can we streamline inter-application communication without adding more complexity to the IT system ?“

Discussion highlights :

  • Introduction to event-driven architecture principles
  • Real-world case study of event streaming at Fortuneo
  • Exploration of the relevance and applicability of this approach in an industrial setting

Key takeaways from the experience shared :

  • Event streaming decouples systems and ensures reliable real-time communication
  • Business events (e.g., customer orders, production completion, anomaly detection) can be managed as continuous flows
  • This approach allows for progressive modernization of the IT system without disrupting existing infrastructure
  • It also lays the foundation for more advanced data use cases such as real-time monitoring and AI

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