If staff members are absent, this can quickly mean that an organisation can no longer carry out its specialised tasks and business processes. The reasons for staff absences can be manifold. For example, unsanitary conditions in the canteen or a strike can cause many employees to be absent at the same time. The death of an employee can also lead to downtime or impair important business processes or specialised tasks. In addition, relevant information for restarting a business process or IT system may no longer be accessible. If individual persons have exclusive expert knowledge, even a minimal personnel shortage can result in damage.