DFD DIAGRAM

DFD Diagram



DFD Diagram

Summary

In the late 1970s data-flow design drawings (DFDs) were presented and popularized for organized enquiry and design. DFDs display the flow of facts and numbers from external entities into the design, brandished how the details and numbers shifted from one method to another, as well as its organized storage. There are only four symbols:

Squares representing external entities, which are causes or destinations of facts and figures.

Rounded rectangles comprising methods, which take facts and figures as input, do certain thing to it, and yield it.

Arrows comprising the facts and figures flows, which can either, be ...