For large structures, the data entry workshop was under the responsibility of an instructor while the processing house was placed under the responsibility of a Workshop Manager; all being headed by a Chief of Service.
The various electromechanical machines that provide specialized functions are detailed in the menu “The Machines”.
Maintenance technicians, belonging to the “Customer Care Service” of the Compagnie des Machines Bull, ensured the installation, troubleshooting and maintenance of machines in the workshop, refering to the ranges of planned operations (weekly, monthly, quarterly, semi-annual or annual).
A class called “control grid” is used to check the centering adjustment of the perforations on the axis of each of the 80 columns of the card.