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Author Topic: MIS Notes  (Read 980 times)

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Jigna

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MIS Notes
« on: August 04, 2013, 01:11:03 PM »
Notes on:
Management information system

Decision Table
Decision tables are a precise yet compact way to model complicated logic. Decision
tables, like if-then-else and switch-case statements, associate conditions with actions to perform. But, unlike the control structures found in traditional programming languages, decision tables can associate many independent conditions with several actions in an elegant way

Data Flow Diagram
What are Data Flow Diagrams?

Data flow diagrams illustrate how data is processed by a system in terms of inputs and outputs.
A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system, modeling its process aspects. Often they are a preliminary step used to create an overview of the system which can later be elaborated.
A DFD shows what kinds of information will be input to and output from the system, where the data will come from and go to, and where the data will be stored. It does not show information about the timing of processes, or information about whether processes will operate in sequence or in parallel (which is shown on a flowchart).
« Last Edit: August 04, 2013, 01:12:20 PM by TechShristi »

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MIS Notes
« on: August 04, 2013, 01:11:03 PM »

 
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