IT Intervention Management System ER diagram models a relational database for tracking technical support requests across three core entities: Demandeur (requester), Technicien (technician), and Materiel (equipment). Interventions connect requesters, technicians, and assets through foreign keys, capturing intervention details including ticket number, date, problem description, type, observations, and status. This schema enforces data integrity and enables IT teams to manage support workflows, track technician assignments, and maintain equipment history in a single normalized structure. Fork and customize this diagram on Diagrams.so to adapt it for your organization's specific intervention categories, priority levels, or additional metadata requirements.