Data archiving also provides insurance against loss by the data collector.

A partnership team of one labor data collector and one management data collector visits each surveyed employer.

The data collector stores the serial number of the checkpoint with the date and time.

It also allows the data collector to direct requests for data to the database, rather than address requests individually.

It also increases research efficiency since both the data collector and other researchers will be able to understand and use well-annotated data in the future.