This UML class diagram shows the structure of a gym management system. The member class is central, linking to memberships, payments, and workout plans. The trainer class assigns trainers to members and schedules training sessions. The admin manages members, trainers, payments, and gym equipment upkeep. The gym class keeps a list of trainers and members to ensure smooth operations. Equipment is monitored for maintenance and updates. This UML class diagram helps gym owners manage membership plans, personal training sessions, payments, and facilities. It ensures smooth daily operations.