A few Key Terms for ICT

Quick Revision Cards which I made in a lesson of ICT, main topic is Validation and Verification.

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Preview of A few Key Terms for ICT

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Data Information Knowledge
Data is the raw facts and figures before they Information is made by taking the data and Knowledge is how to interpret and apply
have been processed. processing it. information by applying rules, once this is
done decisions can be made on the
Data is raw facts before it has been How data becomes information:
information received.
Data has no meaning Data + [Structure] + [Context] + Meaning =
Encoding Value Judgements Example of Data being converted to
Information and then to Knowledge
Data is often coded during collection or when input Encoding data often involves the person collecting or
into an ict system. Reasons for this are: entering the data to make judgements about what
Data ­ 4:31, 4:18, 4:29, 4:32, 4:19, 4:21 (Raw facts and
Less effort to type in code to use.
More data can appear on screen E.g. Jack is 5ft 10 inches. The codes for data input are (T=
Information - Race times in 800 metres: J - 4:18, A - 4:19,
H - 4:21, G - 4:29, K - 4:31, S - 4:32 (meaning and
Takes up less storage space Tall M=Medium S=Short). Jane may say Jack is T and Sally
structure added)
It is easier to check that the code is accurate may say M. Value judgements are different for different
Knowledge ­ the runner with the fastest time won the
people, sometimes causing problems when searching
using validation checks. race, so the gaining knowledge would be that runner J
databases in the future.
won the race. (Applying a rule)
Verification Validation Extranet
Checks that the data being typed in matches The process which ensures that data accepted Extranets are intranets opened to select
exactly the data on the document used to for processing is sensible and reasonable groups outside the company such as customers,
supply the information (makes sense) suppliers etc.

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