13722590
Descrição
Mapa Mental por hugo hernandez, atualizado more than 1 year ago
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Criado por hugo hernandez
mais de 6 anos atrás
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The systems life cycle
- Verification
- Definition
- A way of preventing errors when data is input
- A way of preventing errors when data is input
- Ways of
verifaction
- Double
entry
- Data is entered twice
- Data is entered twice
- Visual
check
- The person entering data must check for errors
- The person entering data must check for errors
- Double
entry
- Definition
- Validation
- Definition
- A way to reduce errors
- A way to reduce errors
- Types of validation
- Presence check
- Makes sure that a field is not left blank
- Makes sure that a field is not left blank
- Range check
- Ensure data is in defined range
- Ensure data is in defined range
- Type check
- Ensures correct type of data is entered
- Ensures correct type of data is entered
- Length check
- Format check
- Check digit
- Works with an algorithm
- Works with an algorithm
- Presence check
- Definition
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