X.501�:�Information technology - Open Systems Interconnection

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X.501�:�Information technology - Open Systems Interconnection - The Directory: Models �

Recommendation X.501

In force components
Number	Title	Status
X.501 (10/19) �	Information technology - Open Systems Interconnection - The Directory: Models �	In force
X.501 (2019) Amendment 2 (10/24) �	�	In force (prepublished)
X.501 (2019) Amendment 1 (10/21) �	Information Technology - Open systems Interconnection - The Directory - Models - Amendment 1: Miscellaneous enhancements �	In force
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Superseded and Withdrawn components
Number	Title	Status
X.501 (11/88) �	The Directory - Models �	Superseded
X.501 (11/93) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (08/97) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (1997) Technical Cor. 1 (03/00) �	�	Superseded
X.501 (1997) Amendment 1 (03/00) �	Enhancements for the support of ITU-T Recommendation F.510 and mapping of directory protocols onto TCP/IP � Never published, consolidated in ITU-T X.501 (02/2001). Only the electronic prepublished version is available on ITU Website	Superseded
X.501 (1997) Technical Cor. 2 (02/01) �	�	Superseded
X.501 (1997) Corrigendum 3 (05/05) �	�	Superseded
X.501 (02/01) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (2001) Corrigendum 1 (05/05) �	�	Superseded
X.501 (2001) Corrigendum 2 (11/05) �	�	Superseded
X.501 (2001) Corrigendum 3 (05/08) �	�	Superseded
X.501 (08/05) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (2005) Erratum 1 (08/06) �	� Applies to English version only	Superseded
X.501 (2005) Corrigendum 1 (05/08) �	�	Superseded
X.501 (2005) Corrigendum 2 (11/08) �	�	Superseded
X.501 (2005) Corrigendum 3 (02/11) �	�	Superseded
X.501 (2005) Corrigendum 4 (04/12) �	�	Superseded
X.501 (11/08) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (2008) Corrigendum 1 (02/11) �	�	Superseded
X.501 (2008) Corrigendum 2 (04/12) �	�	Superseded
X.501 (2008) Corrigendum 3 (10/12) �	�	Superseded
X.501 (10/12) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded
X.501 (10/16) �	Information technology - Open Systems Interconnection - The Directory: Models �	Superseded

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