data flow diagram

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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 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.

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.).
References in periodicals archive ?
The first step in creating a flowchart is to build a basic structure by determining the people involved (if it's an organization chart) or the functions and steps to be represented (if it's a data-flow diagram).
* ALTHOUGH SUPERB COMPUTER flowchart software applications are on the market, it's possible to use the tools built into Excel to create professional-looking graphics to illustrate complex accounting systems, organization charts and data-flow diagrams.
Although you can buy superb flowchart software, it's possible to use the tools built into Excel to create professional-looking graphics to illustrate complex accounting systems, organization charts and data-flow diagrams. (For more on graphic software applications, see "Picture That," JofA, Feb.00, page 43.)
Question Graphic Answer How did the system Data-flow diagram showing come up with these inputs, processing, results?
Naturally, there can be multiple macro levels just as there are multiple levels in data-flow diagrams. And there may be macro levels organized according to different criteria (aggregation vs.
Other OOAD research, however, includes overly simplistic rules or rules based on mappings from data-flow diagrams to behavior in objects (e.g., (2) and (17)).
For example, traditional data-flow diagrams and other function-oriented representations can be used in a new context--representing an object's functionality rather than the system's functionality (11).

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