The six French Water Agencies, public institutions under the authority of the Ministry of Ecological Transition, are responsible for protecting water resources and aquatic environments across all French river basins. To guide their actions, they rely on Business Intelligence (BI) systems that centralize, transform, and analyze vast amounts of data. To ensure the reliability and evolution of these tools, the Department of Information Systems and Digital Usage (DSIUN) has entrusted TRIMANE with the maintenance of all decision-making environments used by the agencies.

The primary objective of the project is to ensure service continuity by implementing an outsourced Third-Party Application Maintenance (TMA) capable of anticipating incidents and securing daily processing. Another goal is to improve data quality and traceability by harmonizing the methods and tools used across the different agencies.

A further major challenge involves mastering technical and regulatory evolutions: software version upgrades, functional enhancements, GDPR compliance, etc. Finally, TRIMANE must guarantee a complete and controlled reversibility (handover) at the end of the contract, through exhaustive documentation, a structured transfer of skills, and proven processes ensuring a smooth and secure transition.

The support is based on a project framework designed to handle the diverse environments specific to each river basin. The process begins with an immersion phase aimed at understanding local specificities and stabilizing the Quality Assurance Plan (QAP) and operational procedures.

Daily management relies on increased monitoring of data flows, ensuring the freshness and consistency of decision-making indicators. On a technical level, the intervention mobilizes versatile expertise capable of maintaining and evolving a heterogeneous ecosystem. The work covers the entire value chain:

• Data Integration: Using ETL tools such as SAP Data Services, Oracle Data Integrator (ODI), and Talend.

• Reporting and Analysis: Modeling universes and creating reports in SAP Business Objects.

• Lifecycle Management: Controlled evolution cycles including impact studies, SQL development, and comprehensive testing (UAT).

• Infrastructure: Secure installation of patches and new software versions on Oracle and Linux infrastructures.

This collaboration provides the Water Agencies with effective preventive maintenance, reducing the number of incidents and durably stabilizing production platforms. This organization ensures adaptation to the variability of local environments while maintaining a unified standard of rigor.

Thanks to regular documentation and up-to-date reversibility plans, the DSIUN enjoys full visibility over its technical environments and increased security for the future. The project’s agility ensures a continuous and tailored response to operational needs and strategic challenges related to water management.