A systems analyst uses a system flowchart when designing a new system. (a) Explain what a system flowchart is. [2] (b) Describe three symbols used in a syst...
Question 1 Report
A systems analyst uses a system flowchart when designing a new system.
(a) Explain what a system flowchart is. [2]
(b) Describe three symbols used in a system flowchart and state what each represents. [3]
(c) Give one difference between a system flowchart and a data flow diagram. [1]
Answer Details
(a) A system flowchart is a diagram that shows how the different components of a computer system are connected. [1] It illustrates the hardware devices, software processes and data flows within the system, showing how data moves from input through processing to output and storage. [1]
(b) Three symbols used in a system flowchart:
- Parallelogram: Represents the input or output of data (e.g., data entered via a keyboard or a report sent to a printer). [1]
- Rectangle: Represents a process or operation being performed on data (e.g., sorting records or calculating a total). [1]
- Cylinder or drum: Represents a data storage device such as a hard drive or database where data is stored permanently. [1]
(c) A system flowchart shows the physical components and media used in the system (specific hardware and software), whereas a data flow diagram (DFD) shows the logical flow of data through processes and stores without reference to how or where the processing is physically done. [1]
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