Service management · independent commentary
ITIL 4
The vocabulary everyone uses and few use the same way
Value is co-created, outputs are not outcomes, and an incident is not a problem. The distinctions that make the rest of the framework readable. Why this is ITIL 4 and not ITIL 5. PeopleCert released ITIL Version 5 in February 2026 and plans to retire the ITIL 4 modules at the end of 2027. ITIL 4 is still the edition most organisations run on, so it is the one described here — and unlike every other topic on this site, neither edition can be read for free. There is no public ITIL glossary and no published framework pages, so these cards are written from knowledge of the publications rather than against them. That is why this topic is marked as secondary sourcing, and it will stay that way until the material is readable.
Start the map 5 pillars · 15 cards · about 22 minutes end to end
The map
Five minutes, once. Rate each pillar before you start and the cards you are shakiest on come first. Skipping it costs you nothing but the ordering.
-
Service, value, and who creates it
The definitions the whole framework rests on, and the ones most often misquoted.
-
The service value system
How demand becomes value, and why the chain is not a process.
-
The guiding principles
Seven recommendations that apply everywhere, including to adopting ITIL itself.
-
The four dimensions
Four perspectives every service needs, and the cost of forgetting one.
-
Practices in daily use
Incident, problem, change and request — the four whose boundaries decide your ticket queue.
Apply it
One scenario per sitting, about ten minutes. No marking scheme that pretends to be objective — a rubric you are invited to argue with.
Sources: ITIL 4 Foundation (AXELOS / PeopleCert), 2019 edition, ITIL 4 glossary of terms. Written from those texts and last checked on against reporting on them — not read line by line against the primary documents. Every card names the clause it comes from precisely so you can settle it at the source, and [email protected] is where a correction goes.
ITIL® is a registered trade mark of the PeopleCert group. ytyk.org is not affiliated with, endorsed by or licensed by PeopleCert. These cards are independent commentary written in our own words; no part of the ITIL publications, and no ITIL diagram, is reproduced here.