ISO/IEC 8824-1:2015/Amd 1:2019

INTERNATIONAL ISO/IEC
STANDARD 8824-1
Fifth edition
2015-11-15
AMENDMENT 1
2019-03
Information technology — Abstract
Syntax Notation One (ASN.1):
Specification of basic notation
AMENDMENT 1: Relaxing imports clause
to allow importation of definitions from
new versions of a given module
Technologies de l'information — Notation de syntaxe abstraite
numéro un (ASN.1): Spécification de la notation de base
AMENDEMENT 1: .
Reference number
ISO/IEC 8824-1:2015/Amd.1:2019(E)
©
ISO/IEC 2019

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ISO/IEC 8824-1:2015/Amd.1:2019(E)

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ISO/IEC 8824-1:2015/Amd.1:2019(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
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see www.iso.org/iso/foreword.html.
This document was prepared by ITU‐T (as X.680 (2015)/Amd.1) and drafted in accordance with its
editorial rules. It was assigned to Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 6, Telecommunications and information exchange between systems, and adopted under
the “fast‐track procedure”.
A list of all parts in the ISO/IEC 8824 series can be found on the ISO websitee.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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© ISO/IEC 2019 – All rights reserved iii

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ISO/IEC 8824-1:2015/Amd.1:2019(E)
INTERNATIONAL STANDARD ISO/IEC 8824-1
RECOMMENDATION ITU-T X.680
Information technology –
Abstract Syntax Notation One (ASN.1):
Specification of basic notation
Amendment 1
Relaxing IMPORTS clause to allow importation of definitions
from new versions of a given module
Summary
Amendment 1 to Rec. ITU-T X.680 | ISO/IEC 8824-1 relaxes the IMPORTS clause to allow importation of definitions
from new versions of a given module.
History
*
Edition Recommendation Approval Study Group Unique ID
1.0 ITU-T X.680 1994-07-01 7 11.1002/1000/3040
1.1 ITU-T X.680 (1994) Amd. 1 1995-04-10 7 11.1002/1000/3041
1.2 ITU-T X.680 (1994) Technical Cor. 1 1995-11-21 7 11.1002/1000/3282
1.3 ITU-T X.680 (1994) Technical Cor. 2 1997-12-12 7 11.1002/1000/4180
1.4 ITU-T X.680 (1994) Amd. 1/Technical Cor.1 1997-12-12 7 11.1002/1000/4179
1.5 ITU-T X.680 (1994) Amd. 2 1997-12-12 7 11.1002/1000/4181
2.0 ITU-T X.680 1997-12-12 7 11.1002/1000/4449
2.1 ITU-T X.680 (1997) Technical Cor. 1 1999-06-18 7 11.1002/1000/4700
2.2 ITU-T X.680 (1997) Amd. 1 1999-06-18 7 11.1002/1000/4698
2.3 ITU-T X.680 (1997) Amd. 2 1999-06-18 7 11.1002/1000/4699
2.4 ITU-T X.680 (1997) Technical Cor. 2 2000-03-31 7 11.1002/1000/5046
2.5 ITU-T X.680 (1997) Technical Cor. 3 2001-02-02 7 11.1002/1000/5331
2.6 ITU-T X.680 (1997) Technical Cor. 4 2001-03-15 7 11.1002/1000/5332
2.7 ITU-T X.680 (1997) Amd. 3 2001-10-29 7 11.1002/1000/5562
2.8 ITU-T X.680 (1997) Amd. 4 2001-10-29 7 11.1002/1000/5563
3.0 ITU-T X.680 2002-07-14 17 11.1002/1000/6085
3.1 ITU-T X.680 (2002) Amd. 1 2003-10-29 17 11.1002/1000/7019
3.2 ITU-T X.680 (2002) Amd. 2 2004-08-29 17 11.1002/1000/7291
3.3 ITU-T X.680 (2002) Technical Cor. 1 2005-05-14 17 11.1002/1000/8512
3.4 ITU-T X.680 (2002) Amd. 3 2006-06-13 17 11.1002/1000/8836
3.5 ITU-T X.680 (2002) Amd. 4 2007-05-29 17 11.1002/1000/9105
4.0 ITU-T X.680 2008-11-13 17 11.1002/1000/9604
4.1 ITU-T X.680 (2008) Cor. 1 2011-10-14 17 11.1002/1000/11376
4.2 ITU-T X.680 (2008) Cor. 2 2014-03-01 17 11.1002/1000/12144
5.0 ITU-T X.680 2015-08-13 17 11.1002/1000/12479
5.1 ITU-T X.680 (2015) Cor. 1 2017-05-14 17 11.1002/1000/13257
5.2 ITU-T X.680 (2015) Cor. 2 2017-10-14 17 11.1002/1000/13361
5.3 ITU-T X.680 (2015) Cor. 3 2018-05-14 17 11.1002/1000/13598
5.4 ITU-T X.680 (2015) Amd. 1 2018-05-14 17 11.1002/1000/13597
*
To access the Recommendation, type the URL http://handle.itu.int/ in the address field of your web browser, followed by the
Recommendation's unique ID. For example, http://handle.itu.int/11.1002/1000/11830-en.
© ISO/IEC 2019 – All rights reserved
Rec. ITU-T X.680 (2015)/Amd.1 (05/2018) i

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ISO/IEC 8824-1:2015/Amd.1:2019(E)

FOREWORD
The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of
telecommunications, information and communication technologies (ICTs). The I
...