6.4.2

Flow Diagrams

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Flow Diagrams

Flow diagrams are used to represent a given algorithm.

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Flow diagrams

  • Flow diagrams are used to visually represent the steps that make up an algorithm.
  • A standard set of shapes are used to represent different types of step.
  • Arrows represent the flow of control, or what to execute next.
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Standard shapes

  • An oval is used for the start and end of a program.
  • A rectangle is used to represent a process.
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Standard shapes

  • A parallelogram is used to represent an input or an output.
  • A diamond is used to represent a decision:
    • A decision has two labelled arrows coming out of it.
    • The 'Yes' arrow is followed if the condition in the diamond was true, otherwise the 'No' arrow is followed.

Jump to other topics

1Components of a Computer

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

5Legal, Moral, Cultural & Ethical Issues

6Elements of Computational Thinking

6.1Thinking Abstractly

6.2Thinking Ahead

6.3Thinking Procedurally

6.4Thinking Logically

6.5Thinking Concurrently

7Problem Solving & Programming

8Algorithms

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