Data Flow Diagrams

Subject: Data Flow Diagrams
From: "Janet Swisher" <swisher -at- enthought -dot- com>
To: "TECHWR-L" <techwr-l -at- lists -dot- techwr-l -dot- com>
Date: Fri, 29 Oct 2004 10:06:20 -0500

For those of you still wondering what a DFD is, here is a chapter with

They are commonly used in systems analysis when designing a software system.
However, as Tony points out, they can be used to analyze any process where
there is a flow of information. They are the opposite of flow charts, which
describe the flow of program/process execution. DFDs are stateless---they
only describe where data goes, not when or in what sequence.

Janet Swisher
Senior Technical Writer
Enthought, Inc.


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