information handling software

Descrição

KS4 ICT Mapa Mental sobre information handling software, criado por Matthew Stentiford em 17-04-2017.
Matthew Stentiford
Mapa Mental por Matthew Stentiford, atualizado more than 1 year ago
Matthew Stentiford
Criado por Matthew Stentiford mais de 7 anos atrás
7
1

Resumo de Recurso

information handling software
  1. Benefits of databases
    1. Fast access to data
      1. Easy to edit data
        1. Can validate data
          1. Can create reports
            1. Can share database with users
              1. Security (passwords)
              2. Validation methods
                1. Range check
                  1. Type check
                    1. Length check
                      1. Lookup list
                        1. Picture/format check
                          1. Presence check
                            1. Check if data has been entered
                            2. Data has a particular pattern the computer compares it to other accepted records
                            3. compare with a list of allowed answers
                            4. No. characters used is reasonable
                            5. Correct data type (text/number)
                            6. Data entered in a sensible range
                          2. Security issues
                            1. consequences
                              1. Loss of customers
                                1. Payments for goods not recieved
                                  1. Bad publicity
                                    1. Cash flow problems
                                      1. Management cannot make decisions due to lack of information
                              2. Secure data:
                                1. Cannot be destroyed
                                  1. Cannot be accidentally/purposefully changed
                                    1. Cannot fall into the hands of unauthorised personel
                                  2. How to keep data secure
                                    1. Password systems
                                      1. Back-ups
                                        1. File attributes (read only files)

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