Migration d'un réseau de contrôle d'accès pour le CHRU de Nancy
Blue Wire has been selected to replace the existing access control system. It was our versatility and our software skills that tipped the balance.
Migrating a university hospital's access control network: the trade-offs of a project under constant constraint
A badge system is no longer a piece of locksmithing, it is a building block of your infrastructure
Why readers, controllers and doors now call for the same vigilance as your servers, and what that changes in the way responsibilities are shared internally.
The existing estate: several generations of equipment living side by side
A description of the typical starting point on a hospital site — controllers from different eras, proprietary protocols, partial documentation — and of the survey work that everything else depends on.
What is not up for negotiation: personal safety and continuity of service
The constraints that frame the project before any technical consideration — evacuation, round-the-clock access to critical areas, how doors behave during a power cut — and the way they narrow the windows available for intervention.
Segmenting the network without breaking day-to-day operations
Why access control deserves its own network domain, how to isolate it from the rest of the information system, and the nuance worth stating: segmentation that is too strict makes supervision and remote maintenance harder.
A phased switchover, with a way back at every stage
The decision to split the work into lots by building or by zone rather than migrating everything at once, and what that costs in terms of how long the two systems have to coexist.
Access logs: useful traceability, personal data kept under control
Who consults what, how long entry records are retained, and how to reconcile the needs of an internal investigation with data protection obligations.
What an SME can take from this
Transposing the lessons to smaller estates: the few structuring decisions that are taken when the system is chosen, and the ones you pay dearly for ten years later.
