Reliability, security & resilience · Core
Single sign-on
Also called: SSO
ELI5
Sign in once to use several systems.
Used in conversation
“Enterprise customers require single sign-on.”
Definition
A mechanism allowing one authentication to access multiple connected applications.
Here “Single sign-on” means: A mechanism allowing one authentication to access multiple connected applications.
Pitch context
You will see “Single sign-on” in product strategy decks, roadmaps, experiments and architecture reviews when the discussion reaches reliability, security & resilience.
Why it matters: In reliability, security & resilience, the scope can change what data may be used, who may access it and which controls are required.
Sources & evidence · 2
Direct term-level sources and supporting source families.
- National Institute of Standards and Technology — Computer Security Resource Center GlossaryDirect source · primary · checked 2026-08-16
- Scrum Guides — The Scrum Guide — official current versionSupporting source family · primary · checked 2026-08-16