verifier

Example:The checker made sure that all the items were entered correctly in the inventory system.

Definition:A person or device that examines or inspects something to ensure it is acceptable or correct.

Example:The checker reviewed the documents to make sure there were no inaccuracies.

Definition:A person who checks or examines something to ensure it meets certain standards.

Example:The inspector looked over the newly built house for any construction flaws.

Definition:A person who examines something to determine its quality, condition, or compliance with standards.