Encoding of Data


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  • Created by: Ciaran
  • Created on: 29-01-09 09:55
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Encoding of data.
When information is collected on certain items/people it may be stored.
To store it in a meaningful way it needs to be encoded. Long comments and lines of
information can be marked and graded to specific standard.
1. How does this affect the quality of information the next time it is accessed?
2. Will it be accurate uptodate and complete?
Data may lose accuracy.
A police database of criminals will allow data stored as eye colour but may only be blue,
green or brown to choose from.
Blue/green eyes could be stored as blue.
When the information is needed for identification at a later data the blue/green colour is lost
for ever.
With so much data being collected it has to be kept on a computer so it can be searched
and found.
Value Judgements.
When the encoding data is being it has to rely to some extent on value judgements that may
be different for different people.
One person may code a colour differently to another.
Character references will be coded differently by different people.
Punctuality may be graded from 15 for never late ete.
Are value judgements needed for the person entering the following data:
A person's date of birth.
A baby's weight at birth.
A person's intelligence.
Road conditions.
Number of sick days.
The current VAT rate.


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