About Process Validation, the third stage is continued process verification, Some more information about process validation in continued process verification are as follows:
The variation in the continued process verification can be detected by assessment of various documents.
By complaints of any defects.
By checking out of specification records or process parameters.
Checking deviation reports.
By observing variation in the process yield.
By checking batch records.
Checking records of incoming materials.
By observing adverse event reports.
Periodic meeting between the the quality department and the production department is done in order to discuss about the variations and about the corrective action which are to be taken to prevent variation.