Chapter 1 Mind map

Chapter 1 Mind map

1. Data

   • Consists of raw facts and figures
   • fit for purpose
   • accurate
   • non-biased
   • up to date

2. Computers process data to produce information

   • people use information to produce knowledge

3. ICT methods require less human effort and produce faster and more reliable data than traditional methods. It is easier to keep information secure

4. Data verification methods are used to minimise the risks of transcription errors

   • Data validation checks are made to make sure that data is sensible.
     • Range checks
     • Presence checks
     • Format checks
     • Check digits