SYSTEMS DEVELOPMENT ANALYSIS
APPLICATION DEVELOPMENT PROCESSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Entities
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Process
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Data Flow
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Data Storage
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Detailed explanation-1: -Entities-Entities are source and destination of information data. Entities are represented by a rectangles with their respective names. Process-Activities and action taken on the data are represented by Circle or Round-edged rectangles.
Detailed explanation-2: -External entities are represented by squares as the source or destination of data. Processes are represented by rectangles with rounded corners.
Detailed explanation-3: -In a systems flowchart, a square represents a source or destination of data outside the system.
Detailed explanation-4: -Data flow diagrams represent systems by use of a sparse number of symbols. Systems processes are symbolized by circles, entities external to the system which interact with the system are represented by rectangles, and data stores are denoted by an open ended rectangle.
Detailed explanation-5: -Data flow diagram notations For example, Yourdon and Coad notation uses circles to represent processes, whereas Gane and Sarson notation use rectangles with rounded corners.