Chapter 1 Mind map

Chapter 1 Mind map

Data
1. Consists of raw facts and figures
2. fit for purpose
3. accurate
4. non-biased
5. up to date
Computers process data to produce information
1. 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
1. Data validation checks are made to make sure that data is sensible.
  1. Range checks
  2. Presence checks
  3. Format checks
  4. Check digits

Resumen del Recurso

	Creado por Henry Lane hace más de 10 años