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Data, Information and Data Representation

Factors affecting the quality of information

  • 3 things to know
  • AS Unit 2

Overview

Six factors that affect the quality of information, accuracy of information and relevance of information.

What you need to know

Answer each one before you reveal it.

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Key term

How can the reliability of a figure found online be judged?

Key term

Name six factors that affect the quality of information.

Key term

What is meant by the accuracy of information?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Name six factors that affect the quality of information.

    Model answer

    The quality of information depends on its accuracy, its relevance, how up to date it is, its completeness, its presentation and its reliability.

  2. 2

    What is meant by the accuracy of information?

    Model answer

    Accuracy is the extent to which information matches the true values it claims to report, with no errors introduced when the data was collected, entered or processed.

  3. 3

    What can go wrong when a stock system holds inaccurate figures?

    Model answer

    A stock level recorded as 40 units when only 4 are on the shelf leads the business to accept orders it cannot fulfil and to delay reordering until customers have already been let down.

  4. 4

    What is meant by the relevance of information?

    Model answer

    Relevance is the extent to which information bears on the decision being taken, so that everything supplied is needed and nothing needed has been left out.

  5. 5

    Why is irrelevant information a problem even when every figure in it is accurate?

    Model answer

    Irrelevant material lengthens a report and buries the figures that matter, so the reader takes longer to decide and may miss the important point altogether.

  6. 6

    What is meant by currency, or information being up to date?

    Model answer

    Currency is how recently information was produced or last checked, and information is up to date when it still describes the situation as it stands now.

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