data flow diagram


data flow diagram

[′dad·ə ¦flō ‚dī·ə‚gram] (computer science) A chart that traces the movement of data in a computer system and shows how the data is to be processed, using circles to represent data. Also known as bubble chart; system flowchart.

Data Flow Diagram

(programming)A graphical notation used to describe how dataflows between processes in a system. Data flow diagrams arean important tool of most structured analysis techniques.

http://smartdraw.com/resources/centers/software/dfd.htm.

data flow diagram

A description of data and the manual and machine processing performed on the data as it moves and changes from one stage to the next. It also includes the locations where the data are placed in permanent storage (disk, tape, etc.).