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5441105
Chapter 1 Mind map
Description
Mind map Chapter 1
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gcse
Mind Map by
Henry Lane
, updated more than 1 year ago
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Created by
Henry Lane
over 8 years ago
16
1
0
Resource summary
Chapter 1 Mind map
Data
Consists of raw facts and figures
fit for purpose
accurate
non-biased
up to date
Computers process data to produce information
people use information to produce knowledge
ICT methods require less human effort and produce faster and more reliable data than traditional methods. It is easier to keep information secure
Data verification methods are used to minimise the risks of transcription errors
Data validation checks are made to make sure that data is sensible.
Range checks
Presence checks
Format checks
Check digits
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