Ads
related to: it data flow chart examples
Search results
Results From The WOW.Com Content Network
Data flow diagram with data storage, data flows, function and interface. A data-flow diagram is a way of representing a flow of data through a process or a system (usually an information system). The DFD also provides information about the outputs and inputs of each entity and the process itself.
A dashed line with an open arrow pointing away from the source to the target is used to represent information flow. The keyword "flow" may be written above or below the dashed line. Information items represent the abstraction of data and act as information flow connectors, representing the flow of transfer of information from source to target.
A canonical example of a data-flow analysis is reaching definitions. A simple way to perform data-flow analysis of programs is to set up data-flow equations for each node of the control-flow graph and solve them by repeatedly calculating the output from the input locally at each node until the whole system stabilizes, i.e., it reaches a fixpoint.
Each FFBD shall contain the following contextual and administrative data: [9] Date the diagram was created; Name of the engineer, organization, or working group that created the diagram; Unique decimal delimited number of the function being diagrammed; Unique function name of the function being diagrammed. Figure 8 and Figure 9 present the data ...
Data flowcharts, showing controls over a data-flow in a system; System flowcharts, showing controls at a physical or resource level; Program flowchart, showing the controls in a program within a system; Notice that every type of flowchart focuses on some kind of control, rather than on the particular flow itself. [10]
Control and data are most applicable for real time and data-driven systems. These flow analyses transform logic and data requirements text into graphic flows which are easier to analyze than the text. PERT, state transition, and transaction diagrams are examples of control-flow diagrams. [4]