Regular Verification of The Spreadsheet


 

Regular Verification of The Spreadsheet

Regularly, in a risk-based approach an OMCL should define an appropriate frequency of regular verification of an existing spreadsheet.

After every change performed in the soft- or hardware configuration, the spreadsheet should be verified to ensure that its validated state is maintained.

A known dataset is used and the results are compared to the standard one.

In order to help the operator, verification instructions containing the information required should be available.

Each verification is registered, with the following information: date of operation, intervention (i.e. verification), comments, and operator’s signature.

Results from the verification should be kept in the validation file or system documentation.

Source; Validation of Computerised Systems Annex 1 – Validation of Excel Spreadsheets PA/PH/OMCL (08) 87 R6


“Trust but Verify “ Ronald Reagan

 

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