Making data flow diagrams or DFDs with SmartDraw is quick and easy. You start with the DFD template — which has all of the data flow symbols that you need. Then, add your information and build your data flow, using SmartDraw's automated connectors and built-in know how. Your data flow diagram is ready to be printed, transferred to Microsoft Office®, or shared online as a PDF.
Data flow diagrams (or DFD) illustrate how data is processed by a system in terms of inputs and outputs. A DFD can document the flow of data within an existing system or a system that is in the process of being built or planned.
The foundation of any data flow diagram includes four components: terminators/external entities, processes, data stores, and data flows.
There are 2 types of notation used in a DFD: Yourdon & Coad or Gane & Sarson. They differ in the types of shapes used to describe a process and data store.