information handling

information handling

1. database

   • is an store of data
     • this is stored in tables and fields
   • uses
     • school registration
     • police records
     • search engines
     • medical records
     • keeping records of loans

2. benefits

   • fast access
     • faster than paper based systems
   • easy to edit
   • validation
     • settings checked on the data
   • reports
   • sharing
   • security

3. validation

   • its an automatic computer check
   • checks if data is reasonsable
   • but doesn't check accuracy
   • range check
   • format check
   • presence check
   • check digit

4. database terminolgy

   • forms
     • makes entering data easier
   • queries
     • these are to find specific data in a fields
   • fields
     • put data in a field to give the data a meaning
   • validation
     • check if the data is reasonable

5. verification

   • checks data that you entered against source data

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