Higher CompSci: Software Design and Development - Methodologies

Which one is the best definition of Computational Thinking?

• a set of problem-solving methods that involve expressing problems and their solutions in ways that a computer could also execute

• being able to create an algorithm to solve a problem

• the ability to think about a problem from the computer's perspective

• being able to turn a program design into working code

What type of software development methodology is shown?

• Waterfall

• Agile

• Rapid Application Development

• Sequential

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

• Design

• Implementation

• Evaluation

• Analysis

• Testing

Answer explanation

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

Match the stages of the software development lifecycle with their correct description ...

• Specifying how the software will solve the problem

• Analysis

• Deciding if the software meets the original requirements

• Evaluation

• Deciding what the software will do

• Design

• Creating program code in chosen language

• Implementation

• Checking the actual outputs are correct

• Testing

Answer explanation

A.D.I.T.D.E. - think of your own helpful acronym to help you rememebr the stages.

Match the software development methodology to its correct description

• Software is built in small incremental stages with frequent releases

• Iterative

• An early working prototype of software is created for the client

• Waterfall

• Esach phase is completed before the next one begins

• Rapid Application Development

• Multiple development cycles occur simulataneously

• Agile

Draw a sketch showing the six stages of the Waterfall software development lifecycle

A software development approach which involves producing very early prototypes of the software for the client to test and give feedback on, after which it can be amended and refined.

• A

• I

• L

• G

• E

Which of the following would be an example of iteration in the software development process?

• A programmer spots a flaw in calculations that have been specified when he is writing

  code. He queries this with the design team, who ask the client for clarification

• A tester is happy with the results of work he has been doing and recommends the software

  for release

• A systems analyst designs a questionnaire for users of a new app being proposed

• A designer creates pseudocode for a piece of software and passes it onto the

  programming team

Another technique is the ______ development methodology. This involves breaking down the work needed into smaller parts that are developed quickly.

Which of the following activities correctly describes an analysis?

• Writing code on a computer

• Working out what the program is required to do

• Testing the program

• Reporting bugs to a software company