Cambridge Nationals IT Revision Guide and Workbook

Page 31

Information and data

see p. 78

What you need to know •

The difference between data and information

What the relationship is between data and information.

Data is just facts and figures that have no meaning or links. When data is processed into information, it is given a meaning.

Data Information

PL E

Data is facts or figures that have no meaning or link.

Information is where data is given some meaning, so that you understand what it is about.

M

For example, a travel agent may have a list of airport codes for destinations where it has special offers. The codes are all 3 letters long. LIN is Milan Linate.

Relationship formula

SA

To remember the relationship between data and information, use this formula: Information = data + [structure] + [context]

The information might need to be in a specific format, like a postcode, which is why structure is sometimes needed.

Practise it!

1

Define the term ‘information’.

2

Explain why some information has a structure, using a suitable example.

3

(2 marks)

Remember it! •

Data is a list of items that have no meaning or structure.

Information is where data has been given some meaning.

Information = data + [structure] + [context].

(3 marks)

Discuss the impact of selling information about your customers. (9 marks)

Tip: This has a link to TA4 and the different legislation.

Revision Guide

29

Original material © Cambridge University Press 2022. This material is not final and is subject to further changes prior to publication.


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.