The organization has a clear process, according to which it identifies the most critical functions in terms of its operations (e.g. services offered to customers), which are subject to the highest continuity requirements.
Items in the IT environment that are necessary for these activities (such as information systems, data reserves, operating processes, partners, units, hardware) are classified as critical.
Critical functions are considered with the highest priority, e.g. in continuity planning, and stricter safety requirements can be applied to them than to other objects in the environment.