X.500
List of X.500 series standards

X.500

Section Title: List of X.500 series standards
Table Section Text: None

ITU-T number	ISO/IEC number	Title of Standard

X.500	ISO/IEC 9594-1	The Directory: Overview of concepts, models and services

X.501	ISO/IEC 9594-2	The Directory: Models

X.509	ISO/IEC 9594-8	The Directory: Public-key and attribute certificate frameworks

X.511	ISO/IEC 9594-3	The Directory: Abstract service definition

X.518	ISO/IEC 9594-4	The Directory: Procedures for distributed operation

X.519	ISO/IEC 9594-5	The Directory: Protocol specifications

X.520	ISO/IEC 9594-6	The Directory: Selected attribute types

X.521	ISO/IEC 9594-7	The Directory: Selected object classes

X.525	ISO/IEC 9594-9	The Directory: Replication

X.530	ISO/IEC 9594-10	The Directory: Use of systems management for administration of the Directory

Sentence(s)

X.520 and X.521 is for attributes and object classes.

final_sentence: X.520 and X.521 is for attributes and object classes.