Flashcards
data and quality of data - revision flash cards
Cards in this deck (10)
- 1Data and quality of dataData is processed into Information, which is then processed into Knowledge
- 2What is data?Data is meaningless, or unprocessed, it doesn't mean anything .
Consists of raw facts and figures, they have no use before they are processed. - 3It can be...a number
a word
an image
sound
video
Needs information to go with it to make it meaningful - 4What is information?Information id data that has been processed, or given meaning.
- 5Processed can mean...Having calculations performed on it or dates added to it.
- 6What is knowledge?knowledge: has a rule, obtained from information by applying rules to it. (applying conmen sense).
- 7An example06102000: data
06/10/2000: information
06/10/2000, is my sisters birthday: knowledge - 8GIGO (Garbage in garbage out)put incorrect data into a computer you'll get incorrect data form the computer
- 9ways data can arise1) from the results of an experiment
2) From automatic measurements using sensors,(E.G: temperature)
3) From a transaction ( for example: buying a download
4) From a survey (e.g; finding the most popular) - 10Evaluating dataData should be evaluated before use. evaluation checks the data:
is it fit for purpose?
is it accurate?
it is not biased