What is a Single Source of Truth?
A single source of truth (SSOT) is one authoritative, agreed-upon place where a given piece of information lives, so everyone references the same up-to-date version instead of conflicting copies.
A single source of truth (SSOT) is the practice of keeping one definitive home for each piece of information. When a fact, process, or document exists in exactly one trusted place, everyone who needs it sees the same current version, and updates only have to happen once.
The opposite is the everyday problem most teams know well: the same procedure written three different ways across a wiki page, a slide deck, and someone's saved chat message, with no way to tell which one is right.
Why it matters
Without a single source of truth, information drifts. People follow outdated steps, support gives inconsistent answers, and trust in the documentation erodes until everyone goes back to asking a person. With one, updates propagate cleanly, onboarding is reliable, and teams stop wasting time reconciling versions. For documentation specifically, an SSOT is what keeps a knowledge base trustworthy as a product and its processes change.
How it works
Maintaining a single source of truth usually means:
- One canonical home for each topic, with everything else linking to it rather than copying it.
- Clear ownership so someone is responsible for keeping it correct.
- A review cadence so the canonical version is actively maintained, not just declared.
- Easy updates so keeping the truth current is not a burden people avoid.
That last point is where many efforts break down. If updating the canonical version is slow, copies and workarounds reappear. Making updates cheap keeps the single source of truth intact. When documentation is built from recordings, refreshing it can be as simple as re-recording the workflow. Vidocu regenerates step-by-step documentation and screenshots from a new recording, so the canonical guide can stay in sync with the live product instead of going stale.
Best practices
- Link, do not copy: reference the canonical version everywhere instead of duplicating it.
- Name an owner: an unowned source of truth quietly becomes untrue.
- Make updates fast: the easier it is to refresh, the longer the SSOT holds.
- Retire duplicates: actively remove or redirect stale copies.
- Date everything: last-updated dates signal whether the truth is still current.
Why it matters
One authoritative home
Each piece of information lives in exactly one trusted place that everything else references.
Prevents version drift
It stops the same procedure existing in conflicting copies that no one can reconcile.
Update once, propagate everywhere
Changes happen in one place, so everyone sees the current version without manual syncing.
Needs ownership and cadence
An SSOT only stays true when someone owns it and reviews it on a schedule.
Easy updates keep it intact
When refreshing the canonical version is slow, copies and workarounds creep back in.
Examples
- •A knowledge base article that every team links to instead of pasting steps into separate docs.
- •One canonical SOP for a process, referenced from onboarding, support, and training.
- •A help center that serves as the definitive answer for both customers and internal teams.
- •A product guide regenerated from a fresh recording so it always matches the live UI.
Frequently asked questions
It means keeping one authoritative, agreed-upon place for a given piece of information, so everyone references the same current version instead of conflicting copies.
It keeps a knowledge base trustworthy. When each topic has one canonical home, updates happen once and propagate, so readers do not follow outdated or contradictory instructions.
Give each topic one canonical home, link to it instead of copying, assign an owner, review on a cadence, and retire duplicates. Crucially, make updates easy so the canonical version stays current.
Duplication and slow updates. When refreshing the canonical version is hard, people make copies and workarounds, and the single source quietly stops being the truth.
When documentation is generated from recordings, you can refresh the canonical version by re-recording the workflow, which keeps it in sync with the live product instead of drifting out of date.
Vidocu regenerates step-by-step documentation and screenshots from a new screen recording, so your canonical guides stay current as the product changes, with subtitles and AI voiceover available in 65+ languages.
Related terms
Learn more
- AI Knowledge Base Generator — Keep one canonical, searchable home for your knowledge.
- Knowledge Center — Centralize internal and customer answers in one authoritative place.
- Video to Documentation — Refresh canonical guides by re-recording the workflow.
- AI Video Documentation — Keep documentation in sync with the live product from one upload.