data flow diagram

from The Free On-line Dictionary of Computing (8 July 2008)

Data Flow Diagram
DFD

   <programming> A graphical notation used to describe how {data}
   flows between {processes} in a system.  Data flow diagrams are
   an important tool of most {structured analysis} techniques.

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

   (2003-05-17)