Which one of the following is the BEST definition of the term service management?

This is the formal ITIL definition of service management - it emphasizes 'specialized organizational capabilities' such as processes, functions, and roles that are used to transform resources into valuable services for customers. The word 'specialized' distinguishes these capabilities from generic management activities. This definition underpins the entire ITIL framework by centering service management on value delivery.

This describes a 'system' - a set of interacting or interrelated components forming a unified whole - which is a different ITIL concept.

This describes functional management, which focuses on internal organizational activities rather than the value-oriented definition of service management.

This describes an organizational 'function' - units with roles to perform specific activities - not service management as a discipline.