1.2.7 - Construct suitable representations to illustrate system requirements.

Question 1

Give 4 types of diagram (for illustrating system requirements).

Answer 1

1) System flow chart.
2) Data flow diagram.
3) Structure chart.
4) Wireframe.

Question 2

Describe a flowchart.

Answer 2

A flow chart is a type of diagram representing a process using different symbols containing information about steps or a sequence of events. Each of these symbols is linked with arrows to illustrate the flow direction of the process.

Question 3

Describe a data flow diagram.

Answer 3

A data flow diagram (DFD) maps out the flow of information for any process or system. It uses defined symbols like rectangles, circles and arrows, plus short text labels, to show data inputs, outputs, storage points and the routes between each destination.

Question 4

Describe a structure chart.

Answer 4

A structure chart is a diagram representing the organisation of a system, usually with showing the different parts in hierarchical order.

Question 5

Describe a wireframe.

Answer 5

A wireframe is a schematic or blueprint helping to think about the structure of the software being built. It’s like the full program, but without the assets or the content.