Design accurate Yourdon-DeMarco Data Flow Diagrams with a powerful, easy-to-use online DFD editor
The Yourdon-DeMarco notation is one of the most widely recognized approaches for mapping how data moves through a system. Its straightforward symbol set makes it easy to break down processes, define interactions, and document system boundaries-ideal for traditional system analysis and documentation.
With Visual Paradigm, creating Yourdon-DeMarco DFDs is effortless. Drop in processes, data stores, and external entities, connect them visually, and refine your diagram with snapping guides, formatting controls, and reusable elements that help keep models organized and presentation-ready.
