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:check: Proofing :check: - Coggle Diagram

- - - - What is the spell checker?
        
        The spell checker is a test that the word processor performs on the text.
        
        Does the spell checker always work?
        
        If your word processor displays a wavy red underline, it may not be a misspelling. Right-click on it and a drop-down menu of suggested words will appear.
        
        Other errors
        
        Sometimes other errors may be flagged as spelling errors, like this. This example shows a repeated word 'not' which needs removing. Delete the extra word to correct this error.
  - - - Validation is checking that data entered is reasonable.
      - Appropriate type of validation
        
        It is important that for each question you review all the different validation types, and decide which would be most appropriate.
- - - - It is critically important that data entered into computer systems is accurate.
    - - The most common data entry errors include spelling errors, errors in the use of capital letters and transposed numbers.
  - - - Visual verification
        
        Visual verification is checking for data entry errors by comparing the original paper documents with the data entered into the computer.
      - Double data entry
        
        Two data entry errors can be fixed by computer systems. Data is entered into a system twice and compared by the computer to check for differences in the data.
        
        Example
        
        When a website ask you to write the password twice, this checks if both password are correct, but if the same mistake is made in both passwords the system will accept it as correct