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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
As explained in Section 2, our implementation of the AutSEC model is aimed at automating the widely used threat modeling [9] process of the Microsoft security development lifecycle (SDL), which uses data flow diagrams (DFDs) to represent the software architecture.
By this I mean that you've selected methods and tools that suit your needs for structured analysis and design, such as data flow diagrams, data dictionaries, and process specifications.
Cross-references (explosion paths) between all Processes, Sub-processes, Files and Data Flows depicted in the Data Flow Diagrams.
* Discussing that data flow diagram while proposing changes in the system for their project
MacA&D comes with six new 15-minute training videos that cover data flow diagrams, class models, data models, flowcharts, system models with simulation and requirements management.
It can also be adapted to cover top-down program design showing the tree structure of the various modular components using the functional decomposition of the data flow diagrams. A class discussion could include how these system components exchange data with minimal coupling and maximum cohesion.
It includes an object diagram, data flow diagrams and state-transition diagrams.
At a minimum, a context level data flow diagram gives students an insight into the scope and boundaries of the system, while developing their ability to represent their understanding of the system in a variety of different forms.
Leveled data flow diagrams (DFDs), which begin with a one-bubble context diagram as a parent, and proceed to sets of successively more detailed child diagrams.
For example, Whitten and Bentley (2007), used a data flow diagram to illustrate all the phases of the SDLC.
The context data flow diagram for this theater reservation system is given in Figure 1a.

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