Property Hub is a real estate management system modeled as a DFD Level 0 context diagram showing interactions between Business Owners, Business Agents, and Customers/Buyers. The system centralizes property listings, transactions, and communications across three external entities, each with distinct data flows into and out of the core platform. This context-level view helps architects understand system boundaries, external dependencies, and high-level data exchange patterns before detailed design. Fork this diagram on Diagrams.so to customize entities, add AWS service mappings, or extend it into lower-level DFD layers for your own real estate platform.