Multi-branch fuel station ERD models a relational database for managing distributed fuel retail operations across multiple locations. The schema connects ROLE and USER entities for staff management, BRANCH for location data, FUEL_PUMP for hardware tracking, FUEL_TYPE for product definitions, INVENTORY for stock levels, and SALE for transaction records. Each SALE transaction captures user, branch, pump, and fuel type context, enabling comprehensive reporting on fuel distribution, sales performance, and inventory management across branches. Fork this diagram on Diagrams.so to customize for your fuel retail operations, add additional attributes, or export as .drawio for use in database design tools. This ERD follows normalized relational design principles suitable for AWS RDS PostgreSQL or MySQL deployments.