Before study - Is there a backup plan for guaranteeing 100% data measurement during a Workplace Observation Study?

Backup plan for complete data collection.

Every project has a backup plan. In case of unforeseeable circumstances, such as a power outage or IT failure which hinders employees or Observers to carry out their normal work, the measurements from that part of the day or the whole day are conducted later on a day that week. This is done to ensure reliable data. In case an Observer gets sick on the day or during the day of the measurement, a replacement is arranged as soon as possible. If a replacement is not possible, the measurement for the part of the day or the whole day is conducted on a later day in the week.