Тезис

ISO/IEC 8825-4:2015 specifies a set of basic XML Encoding Rules (BASIC-XER) that may be used to derive a transfer syntax for values of types defined in Rec. ITU-T X.680 | ISO/IEC 8824-1 and Rec. ITU-T X.681 | ISO/IEC 8824-2. This Recommendation | International Standard also specifies a set of Canonical XML Encoding Rules (CXER) which provide constraints on the basic XML Encoding Rules and produce a unique encoding for any given ASN.1 value. This Recommendation | International Standard further specifies a set of extended XML Encoding Rules (EXTENDED-XER) which adds further encoders options, and also allows the ASN.1 specifier to vary the encoding that would be produced by BASIC-XER. It is implicit in the specification of these encoding rules that they are also used for decoding.

The encoding rules specified in this Recommendation | International Standard:

- are used at the time of communication;

- are intended for use in circumstances where displaying of values and/or processing them using commonly available XML tools (such as browsers) is the major concern in the choice of encoding rules;

- allow the extension of an abstract syntax by addition of extra values for all forms of extensibility described in Rec. ITU-T X.680 | ISO/IEC 8824‑1.

ISO/IEC 8825-4:2015 also specifies the syntax and semantics of XER encoding instructions, and the rules for their assignment and combination. XER encoding instructions can be used to control the EXTENDED-XER encoding for specific ASN.1 types.


Общая информация 

  • Текущий статус
     :  Withdrawn
    Дата публикации
     : 2015-11
  • Версия
     : 3
  • Технический комитет
     : ISO/IEC JTC 1/SC 6 Telecommunications and information exchange between systems
  • ICS
     :
    35.100.60 Presentation layer

Цели в области устойчивого развития

Данный стандарт разработан для достижения следующих Цель устойчивого развития:

9
Индустриализация, инновации и инфраструктура

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  2. Интернет-магазин
  3. Каталог стандартов
  4. МКС
  5. 35
  6. 35.100
  7. 35.100.60
  8. ISO/IEC 8825-4:2015