Data means raw facts and figures, records of transactions.
Data capture is the collecting of data and can be carried out in many different ways.
Information is data which has been processed to give it a context which gives it meaning.
Knowledge is derived from information by applying rules to it.
Data frequently needs to be encoded when collected to enable effective processing.
Advantages of encoding data:
- Fewer transcription errors
- Less time spent on data entry
- Greater data consistency
- Less memory required
Problems associated with encoding data:
- Coarsening of data
- Value judgements- judgements based on a personal view