Which of the following is NOT defined as part of every process?

Roles are a required component of every process, specifying accountability and responsibility for process activities.

Inputs and outputs are fundamental to every process definition, describing what the process consumes and what it produces.

Functions in ITIL are self-contained organizational units, such as the Service Desk or Technical Management, that use resources and capabilities to perform specific work. They are explicitly distinguished from processes and are not listed among the standard components that define a process. A process is characterized by its roles, inputs, outputs, triggers, activities, and metrics - functions are a parallel concept, not a process component.

Metrics are a required component of every process, enabling measurement of its efficiency and effectiveness.