N5 Computing Science: Software Design

Put the stages of the software development lifecycle into the correct sequence ...

• Design

• Analysis

• Evaluation

• Implementation

• Testing

Answer explanation

This is called the Waterfall methodology (but minus the Documentation stage ...)

Which one of these does NOT describe an objective of the design stage of software development?

• To reflect the requirements of analysis stage

• To be unambiguously interpreted

• To be language independent

• To be able to be implemented by another programmer or team

• To be dependent on the design notation chosen

Answer explanation

In theory all the design notations are just different ways of representing the same program. But some programs may be easier to represent in one notation rather than another.

Complete the missing word:

Structure diagrams and flowcharts are examples of _________ design notations or GDNs.

Answer explanation

It's the same "G" as in GPU, CGI, VGA, SVG, etc. etc.

True or False?

Design notations such as structure diagrams, flowcharts and pseudocode show different levels of design detail

• True

• False

Answer explanation

In theory, no one of these design notations can show any greater or lesser level of detail than another one.

What type of design notation is this?

• Pseudocode

• Structure diagram

• Flow chart

• Wireframe diagram

Answer explanation

Structure diagrams are good at showing the hierarchical structure of a design and the program constructs such as loops contained within the different modues.

What type of design notation is this?

• Pseudocode

• Structure diagram

• Flow chart

• Wireframe diagram

Answer explanation

Flowcharts are good at showing the sequence of steps of an algorithm.

What type of design notation is this?

• Pseudocode

• Structure diagram

• Flow chart

• Wireframe diagram

Answer explanation

Pseudocode is an informal method of describing program code without any formal syntax. Each line usually is numbered and structure is shown through refinements.

Match the design notations to the correct name ...

• Pseudocode

• 
• Flowchart

• 
• Structure diagram

• 
• Wireframe

• 

Match the structure diagram symbols ...

• process

• 
• loop

• 
• selection

• 
• subroutine

• 

Answer explanation

Structure diagrams have their own set of symbols, some of which are similar to flowchart symbols.

Match the Flowchart symbols ...

• subroutine

• 
• process

• 
• decision

• 
• input/output

• 
• terminal

• 

Answer explanation

Flowcharts have their own set of symbols, some of which are shared by structure diagrams.