Service desk university: ITSM glossary and short lessons

What ITSM means, how ITIL 4 structures it (service value system, seven guiding principles, four dimensions), which practices matter for a service desk, and what the new ITIL version changes.

A help desk fixes issues; a service desk is the single point of contact for all IT services, requests and changes. The difference, a comparison table, and where AI help desks fit.

How an IT ticket moves from logged to categorised, routed, resolved, closed and reviewed, what each stage needs, and where automation usually starts.3 min

A short lesson on how incident, problem and change management fit together in ITSM, with one worked example, and why the three practices are often priced on different plans.3 min

What per agent, billed annually, seat minimums, portal caps, AI add-ons and credits mean on an IT service desk price page, with examples from vendor pages in 2026.3 min

A short lesson on plan gates: which IT service desk plan includes problem management, change management and a CMDB at nine vendors, as published in September 2026.4 min

Thirty questions to ask ITSM and service desk vendors about ITIL practices, AI automation, CMDB, requester experience, integrations and pricing, grouped and printable.

What a 20-agent IT service desk costs per year at published list prices in 2026, which plans include change management, and the add-ons, caps and minimums that change the total.

A short lesson on service level agreements in an IT service desk: how targets and timers work, what escalation means, and what vendors document about SLA alerts in 2026.3 min

What a self-service portal and a virtual agent do for requesters, where portal users are capped, and what nine IT service desks document about requester channels in 2026.3 min