IT Service Management (ITSM) (ITILv3):    The implementation and management of of Quality IT Services that meet the needs of the Business. IT Service Management is performed by IT Service Providers through an appropriate mix of people, Process and Information Technology.

See also: Service Management

IT Service Management (ITSM) (ITILv2):    The principles and practices of designing, delivering and maintaining IT services, to an agreed level of quality, in support of a Customer activity.

See also: TBD

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