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)	Miscellaneous enhancements	In force
X.501 (2019) Amendment 1 (10/21)	Information Technology - Open systems Interconnection - The Directory - Models - Amendment 1: Miscellaneous enhancements	In force

Superseded and Withdrawn components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X.501 (11/88)	The Directory - Models	Superseded
X.501 (11/93)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (08/97)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (1997) Technical Cor. 1 (03/00)		Superseded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 Only the electronic prepublished version is available on ITU Website	Superseded
X.501 (1997) Technical Cor. 2 (02/01)		Superseded
X.501 (1997) Corrigendum 3 (05/05)		Superseded
X.501 (02/01)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (2001) Corrigendum 1 (05/05)		Superseded
X.501 (2001) Corrigendum 2 (11/05)		Superseded
X.501 (2001) Corrigendum 3 (05/08)		Superseded
X.501 (08/05)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (2005) Erratum 1 (08/06)	Applies to English version only	Superseded
X.501 (2005) Corrigendum 1 (05/08)		Superseded
X.501 (2005) Corrigendum 2 (11/08)		Superseded
X.501 (2005) Corrigendum 3 (02/11)		Superseded
X.501 (2005) Corrigendum 4 (04/12)		Superseded
X.501 (11/08)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (2008) Corrigendum 1 (02/11)		Superseded
X.501 (2008) Corrigendum 2 (04/12)		Superseded
X.501 (2008) Corrigendum 3 (10/12)		Superseded
X.501 (10/12)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded
X.501 (10/16)	Information technology - Open Systems Interconnection - The Directory: Models	Superseded