Property Management System DFD Level 0 models a multi-user real estate platform with distinct roles for business owners, agents, and customers. Data flows through eight core processes—user access control, property operations, customer management, inquiry handling, sales, payments, task management, and reporting—all backed by a central property database with role-based tables. This architecture demonstrates separation of concerns and role-based access patterns critical for SaaS platforms managing sensitive customer and transaction data. Fork this diagram on Diagrams.so to customize processes, add AWS service mappings, or extend with Level 1 decomposition for specific modules. The design prioritizes data integrity through centralized storage while enabling parallel workflows across business and customer-facing operations.