CAN/CSA-ISO/IEC 8825-3:16

Introduction
Information technology - ASN.1 encoding rules: Specification
 of Encoding Control Notation (ECN)
1 Scope
2 Normative references
3 Definitions
4 Abbreviations
5 Definition of ECN syntax
6 Encoding conventions and notation
7 The ECN character set
8 ECN lexical items
9 ECN Concepts
10 Identifying encoding classes, encoding objects, and encoding
   object sets
11 Encoding ASN.1 types
12 The Encoding Link Module (ELM)
13 Application of encodings
14 The Encoding Definition Module (EDM)
15 The renames clause
16 Encoding class assignments
17 Encoding object assignments
18 Encoding object set assignments
19 Mapping values
20 Defining encoding objects using defined syntax
21 Types used in defined syntax specification
22 Commonly used encoding property groups
23 Defined syntax specification for bit-field and constructor
   classes
24 Defined syntax specification for the #TRANSFORM
   encoding class
25 Complete encodings and the #OUTER class
Annex A - Addendum to Rec. ITU-T X.680 ¦ ISO/IEC 8824-1
Annex B - Addendum to Rec. ITU-T X.681 ¦ ISO/IEC 8824-2
Annex C - Addendum to Rec. ITU-T X.683 ¦ ISO/IEC 8824-4
Annex D - Examples
Annex E - Support for Huffman encodings
Annex F - Additional information on the Encoding Control
          Notation (ECN)
Annex G - Summary of the ECN notation

This Recommendation | International Standard specifies two Versions of a mapping from any XSD Schema into an ASN.1 schema.

CSA Preface Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T). For brevity, this Standard will be referred to as "CAN/CSA-ISO/IEC 8825-3" throughout. At the time of publication, ISO/IEC 8825-3:2015 is available from ISO and IEC in English only. CSA Group will publish the French version when it becomes available from ISO and IEC. Scope This Recommendation | International Standard defines a notation for specifying encodings of ASN.1 types or of parts of types. It provides several mechanisms for such specification, including: direct specification of the encoding using standardized notation; specification of the encoding by reference to standardized encoding rules; specification of the encoding of an ASN.1 type by reference to an encoding structure; specification of the encoding using non-ECN notation. It also provides the means to link the specification of encodings to the type definitions to which they are to be applied. ECN does not currently provide any support for specifications using the OID internationalized resource identifier type or the relative OID internationalized resource identifier type (see Rec. ITU-T X.680 | ISO/IEC 8824-1), and these are not referred to further in this Standard.