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Data, Information and Data Representation

Data, information and knowledge

  • 3 things to know
  • AS Unit 2

Overview

Term data, term information and term knowledge.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

A supermarket till records every item scanned. Explain how that data becomes information and then knowledge.

Key term

Define the term data.

Key term

Define the term information.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Define the term data.

    Model answer

    Data consists of raw facts, figures or symbols that have been recorded without any context or meaning attached to them.

  2. 2

    Define the term information.

    Model answer

    Information is data that has been processed, organised or placed in a context, so that it carries meaning and can be understood.

  3. 3

    Define the term knowledge.

    Model answer

    Knowledge is the understanding built up from information, which allows patterns to be recognised, judgements to be made and decisions to be taken.

  4. 4

    Give an example of a value that is data rather than information.

    Model answer

    The figure 42 written on its own is data, because nothing states what has been counted or measured.

  5. 5

    Turn the figure 42 into information by giving it a context.

    Model answer

    Stating that 42 is the number of tickets sold for Saturday's performance turns the figure into information, because it now has a meaning.

  6. 6

    Give an example of knowledge derived from ticket sales information.

    Model answer

    Noticing over several months that sales are always highest on Saturdays, and therefore scheduling the most popular shows then, is knowledge rather than information.

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ANormal data is 12, which should be accepted.
BBoundary data is 1 and 50, which should be accepted.
C0 and 51, just outside the limits, should be rejected.

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Assemble a full-mark answer from its marking points, in the order an examiner wants them.

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Spot the fault in a statement. The traps are the mistakes students actually make.

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Short focus games to reset attention, so the next set lands better than the last.

Every question in Data, Information and Data Representation, on a schedule.

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