ICT - Data, Information, Knowledge

ICT - Data, Information, Knowledge

1. Data, Information and Knowledge

   • Data
     • Consists of raw facts and figures on their own.
     • Form - Numbers, words, images & sound
     • Data can arise from: Transactions, Survey or expirements
   • Information
     • Data which has been processed by the computer, it has context.
   • Knowledge
     • Is derieved from information by applying rules to it, using information to make decisions

2. Encoding Data

   • Coded data takes less effort to type it. More data can appear on the screen. It is easier checking if a code is accurate using validation checks.
   • Coarsens Precision - encoded data is less accurate than where it came from.
   • Value Judgements - A person collecting or entering the data making judgements which code to use