X.500

E233829

ISO/IEC standard series ITU-T Recommendation series directory service standard

X.500 is an ITU-T and ISO/IEC standard series that defines a directory service model and protocols for distributed, hierarchical storage and retrieval of information about networked entities.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (7)

Label	Occurrences
X.500 canonical	2
ITU-T X.500 series recommendations	1
X.500 Distinguished Name model	1
X.500 directory service	1
X.500 directory services	1
X.500 naming	1
X.500 protocols	1

How this entity was disambiguated

This entity first appeared as the object of triple T2114402 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: X.500
Context triple: [LDAP, relatedStandard, X.500]

A. LDAP
LDAP (Lightweight Directory Access Protocol) is an open, standards-based protocol used to access and manage distributed directory information services over an IP network.
B. Netscape Directory Server
Netscape Directory Server is an LDAP-based directory service software that provides centralized, scalable management of user and resource information for enterprise networks.
C. RFC 1034
RFC 1034 is an Internet standards document that specifies the concepts and facilities of the Domain Name System (DNS), defining how domain names are structured and resolved on the internet.
D. Active Directory Lightweight Directory Services
Active Directory Lightweight Directory Services is a flexible, standalone LDAP directory service from Microsoft that provides directory capabilities without requiring full Active Directory domain infrastructure.
E. Oracle Internet Directory
Oracle Internet Directory is an LDAP-based directory service from Oracle that provides centralized user identity management and authentication for enterprise applications.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: X.500
Target entity description: X.500 is an ITU-T and ISO/IEC standard series that defines a directory service model and protocols for distributed, hierarchical storage and retrieval of information about networked entities.

A. LDAP
LDAP (Lightweight Directory Access Protocol) is an open, standards-based protocol used to access and manage distributed directory information services over an IP network.
B. Netscape Directory Server
Netscape Directory Server is an LDAP-based directory service software that provides centralized, scalable management of user and resource information for enterprise networks.
C. RFC 1034
RFC 1034 is an Internet standards document that specifies the concepts and facilities of the Domain Name System (DNS), defining how domain names are structured and resolved on the internet.
D. Active Directory Lightweight Directory Services
Active Directory Lightweight Directory Services is a flexible, standalone LDAP directory service from Microsoft that provides directory capabilities without requiring full Active Directory domain infrastructure.
E. Oracle Internet Directory
Oracle Internet Directory is an LDAP-based directory service from Oracle that provides centralized user identity management and authentication for enterprise applications.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	ISO/IEC standard series ⓘ ITU-T Recommendation series ⓘ directory service standard ⓘ
applicationDomain	computer networking ⓘ identity management ⓘ telecommunications ⓘ
defines	directory access protocols ⓘ directory service model ⓘ distributed directory architecture ⓘ hierarchical directory information tree ⓘ
definesConcept	Directory Information Base ⓘ Directory Information Tree ⓘ Directory System Agent ⓘ Directory User Agent ⓘ attribute type ⓘ distinguished name ⓘ matching rule ⓘ object class ⓘ relative distinguished name ⓘ
definesProtocol	Directory Access Protocol ⓘ Directory Information Shadowing Protocol ⓘ Directory Operational Binding Management Protocol ⓘ Directory System Protocol ⓘ
governingBody	ITU-T Study Group 17 ⓘ
hasComponent	X.501 ⓘ X.509 ⓘ linked to: X.509 certificates X.511 ⓘ X.518 ⓘ X.519 ⓘ X.520 ⓘ X.521 ⓘ X.525 ⓘ X.530 ⓘ
influenced	Active Directory ⓘ Lightweight Directory Access Protocol ⓘ Novell eDirectory ⓘ linked to: eDirectory OpenLDAP schema design ⓘ
relatedStandard	X.509 ⓘ linked to: X.509 certificates
standardizedBy	IEC ⓘ linked to: International Electrotechnical Commission ISO ⓘ linked to: International Organization for Standardization ITU-T ⓘ linked to: ITU Telecommunication Standardization Sector
supports	access control for directory information ⓘ distributed storage of directory information ⓘ replication of directory data ⓘ search and retrieval of directory entries ⓘ
usesModel	client–server model ⓘ distributed directory model ⓘ
usesStructure	hierarchical namespace ⓘ

How these facts were elicited

Referenced by (8)

Full triples — surface form annotated when it differs from this entity's canonical label.

LDAP → relatedStandard → X.500 ⓘ

Oracle Internet Directory → supportsStandard → X.500 naming ⓘ

linked to: X.500

RFC 4514 → basedOn → X.500 Distinguished Name model ⓘ

linked to: X.500

RFC 4510 → relatedTo → X.500 directory services ⓘ

linked to: X.500

DAP → basedOnStandard → X.500 ⓘ

DAP → definedInContext → X.500 directory service ⓘ

linked to: X.500

DAP → belongsToFamily → X.500 protocols ⓘ

linked to: X.500

DAP → documentation → ITU-T X.500 series recommendations ⓘ

linked to: X.500

All labels observed (7)

How this entity was disambiguated Show

Statements (48)

How these facts were elicited Show

Referenced by (8)

How this entity was disambiguated

How these facts were elicited