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Internationalization Tag Set
Abbreviation: ITS
Scope: Standard for Internationalization and Localization of XML-based Contents
Topic: Data Categorization
Standard body: W3C
Keywords: XML, internationalization, localization, generic elements and attributes

ITS stands for Internationalization Tag Set and is a specification developed within the W3C. First version of the ITS was published in 2007. The second version has been developed since 2012 and currently is a W3C Working Draft.

The goal of the specification is to specify a set of elements and attributes that can be integrated into schemas for XML documents to support the internationalization and localization aspects.

It defines data categories such as terminology, directionality or translation in a standard way. The specification is to use the content-of-schemas and XML instances, and be effective to localize them. In this manner it allows to adapt the content at low cost.

Other standards in the same topic(s):

Version Title: Internationalization Tag Set (ITS) Version 1.0
Abbreviation: ITS-2007 [not official, only for reference in this website]
Version Number: 1.0
Status: W3C Recommendation
Release Date: 2007-04-03
  1. Christian Lieske
  2. Felix Sasaki

The ITS 1.0 is a W3C Recommendation published in April 2007. The specification provides separately a set of data categories and the implementations of these data categories, which are independent from schema language and schema language specific declaration (such as XML DTDs, XML Schema, RELAX NG).

Related Standard(s):
Version Title: Internationalization Tag Set (ITS) Version 2.0
Abbreviation: ITS-2012 [not official, only for reference in this website]
Version Number: 2.0
Status: W3C Working Draft
Release Date: 2012-10-23
  1. Shaun McCane
  2. Dave Lewis
  3. Arle Lommel
  4. Jirka Kosek
  5. Felix Sasaki
  6. Yves Savourel

Similarities and Differences to ITS 1.0:

ITS 2.0 adopts from the previous version ITS 1.0:

  • the use of data categories to define discrete units of functionality
  • the separation of data category definition from the mapping of the data category to a given content format
  • the conformance principle of ITS 1.0 that an implementation only needs to implement one data category to claim conformance to ITS 2.0

What new in this version are :

  • ITS 2.0 has new data category definitions in addition to all the data category definitions in ITS 1.0.
  • ITS 2.0 adds a number of new data categories, which are not in ITS 1.0.
  • ITS 2.0 specifies implementations of data categories not only for XML, but also for HTML5.
  • Unlike ITS 1.0, the ITS 2.0 data categories are intended to be format independent, and thus it has some supports for XML, HTML5, and NIF. A data category implementation only needs to support a single content format mapping in order to support a claim of ITS 2.0 conformance.
  • ITS 2.0 provides algorithms to generate NIF out of HTML5 or XML with ITS 2.0 metadata.
  • A global implementation of ITS 2.0 requires at least the XPath version 1.0. Other versions of XPath or other query languages (e.g. CSS selectors) can be expressed via a dedicated query language attribute.

For more information, see the W3C Internationalization Tag Set (ITS) Version 2.0

Related Standard(s):