Glossary

ITIL 4 Foundation Glossary

By The Exam Atlas Editorial Team · Verified 2026-05-29

Plain-English definitions of the ITIL terms for Foundation study. Simplified for learning; PeopleCert’s materials are authoritative.

TermDefinition
Service managementCapabilities for delivering value through services.
ServiceA means of enabling value co-creation without owning the costs/risks.
ValueThe perceived benefits, usefulness and importance of something.
Utility”Fit for purpose” — what a service does.
Warranty”Fit for use” — how well a service performs.
OutcomeA result for a stakeholder enabled by outputs.
Cost / riskThe money spent / the possibility of harm or loss.
Service relationshipThe cooperation between provider and consumer.
SVSService Value System — how components create value.
Service value chainThe six core activities that turn demand into value.
Guiding principleA recommendation that guides an organisation always.
Four dimensionsPeople, information/tech, partners, value streams.
PracticeA set of resources for performing work (e.g., incident management).
IncidentAn unplanned interruption or reduction in service quality.
ProblemA cause, or potential cause, of one or more incidents.
ChangeThe addition, modification or removal of anything that could affect services.
Service requestA predefined, user-initiated request for something.
Service deskThe single point of contact between provider and users.
Continual improvementOngoing alignment of services with changing needs.
Configuration itemAny component that needs to be managed to deliver a service.

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