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ITU-T X.520

Information technology – Open Systems Interconnection – The Directory: Selected attribute types

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Organization: ITU-T
Publication Date: 1 October 2019
Status: active
Page Count: 132
scope:

This Recommendation | International Standard defines a number of attribute types and matching rules which may be found useful across a range of applications of the Directory.

Attribute types and matching rules fall into three categories, as described below.

Some attribute types and matching rules are used by a wide variety of applications or are understood and/or used by the Directory itself.

NOTE 1 - It is recommended that an attribute type or matching rule defined in this Recommendation | International Standard be used, in preference to the generation of a new one, whenever it is appropriate for the application.

NOTE 2 - The attribute and context types definitions by this Recommendation | International Standard have some associated semantics. Such specifications should not be used in situations where these semantics do not apply.

Some attribute types and matching rules are internationally standardized, but are application-specific. These are defined in the standards associated with the application concerned.

Any administrative authority can define its own attribute types and matching rules for any purpose. These are not internationally standardized, and are available to others beyond the administrative authority which created them only through bilateral agreement.

Document History

ITU-T X.520
October 1, 2019
Information technology – Open Systems Interconnection – The Directory: Selected attribute types
This Recommendation | International Standard defines a number of attribute types and matching rules which may be found useful across a range of applications of the Directory. Attribute types and...
October 1, 2016
Information technology – Open Systems Interconnection – The Directory: Selected attribute types
This Recommendation | International Standard defines a number of attribute types and matching rules which may be found useful across a range of applications of the Directory. Attribute types and...
November 1, 2014
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 1
A description is not available for this item.
October 1, 2012
Information technology – Open Systems Interconnection – The Directory: Selected attribute types
This Recommendation | International Standard defines a number of attribute types and matching rules which may be found useful across a range of applications of the Directory. Attribute types and...
April 1, 2012
(Pre-Published) Information technology – Open Systems Interconnection – The Directory: Selected Attribute types Technical Corrigendum 2
A description is not available for this item.
April 1, 2012
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 4
A description is not available for this item.
February 1, 2011
(Pre-Published) Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 3
A description is not available for this item.
February 1, 2011
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 1
A description is not available for this item.
November 1, 2008
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 2
A description is not available for this item.
November 1, 2008
Information technology – Open Systems Interconnection – The Directory: Selected attribute types
This Recommendation | International Standard defines a number of attribute types and matching rules which may be found useful across a range of applications of the Directory. Attribute types and...
May 1, 2008
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 3
A description is not available for this item.
May 1, 2008
Information technology – Open Systems Interconnection – The Directory: Selected attribute types Technical Corrigendum 1
A description is not available for this item.
November 1, 2005
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types Technical Corrigendum 2
A description is not available for this item.
August 1, 2005
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types
A description is not available for this item.
April 1, 2002
SERIES X: DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS Directory Information technology – Open Systems Interconnection – The Directory: Selected attribute types
A description is not available for this item.
April 1, 2002
SERIES X: DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS Directory Information technology – Open Systems Interconnection – The Directory: Selected attribute types
A description is not available for this item.
February 1, 2001
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types Series X: Data Networks and Open System Communications Directory
A description is not available for this item.
February 1, 2001
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types Series X: Data Networks and Open System Communications Directory
A description is not available for this item.
March 1, 2000
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types Series X: Data Networks and Open System Communications Directory
A description is not available for this item.
August 1, 1997
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types - Series X: Data Networks and Open System Communications Directory
A description is not available for this item.
November 1, 1993
Information Technology - Open Systems Interconnection - The Directory: Selected Attribute Types - Data Networks and Open System Communications Directory 40 pp
A description is not available for this item.
January 1, 1988
Directory - Selected Attribute Types - Data Communication Networks Directory (Study Group VII) 24 pp
A description is not available for this item.

References

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