What will you do if a data is suspected or missing? -...

In case of suspected or missing data following steps should be taken;

Preparation of a validation report that gives information on all suspected data. Information like validation criteria that it failed and the date and time of occurrence should be taken care of.
Experience personnel should examine the suspicious data to determine their acceptability.
Invalid data should be assigned and replaced with a validation code.
To work on missing data best use of analysis strategy like deletion method, single imputation methods, model-based methods, etc. should be followed up.

What will you do if a data is suspected or missing?