A supervisor of the checklist makes sure that all the items on the checklist have been accomplished.

The possessive form is checklist's. Example use:

The inventory checklist's folder was misfiled.

what is the example of checklist?

The H1B checklist is a checklist for immigrants to use to become qualified to enter the US. This checklist helps issue visa's to foreigners to become official US citizens.

There are a few advantages and disadvantages of making a checklist. One advantage of a checklist is that it is harder to forget stuff.