Car Parking Management System ERD models a relational schema with Vehicle, Parking_Slot, Parking_Record, Payment, and User entities. Vehicle records link to Parking_Record via vehicle_id, while Parking_Slot connects through slot_id; Parking_Record then references Payment records and User assignments. This normalized design enforces referential integrity, supports real-time occupancy tracking, duration calculation, and payment reconciliation—critical for SaaS parking platforms. Fork this diagram on Diagrams.so to customize zones, add rate tables, or extend with analytics views. The one-to-many relationships between slots and records enable efficient querying of historical occupancy and revenue per zone.