ISO/IEC TR 30114-1:2016
(Main)Information technology — Extensions of Office Open XML file formats — Part 1: Guidelines
Information technology — Extensions of Office Open XML file formats — Part 1: Guidelines
ISO/IEC TR 30114-1:2016 gives guidelines for the use of extensibility mechanisms in ISO/IEC 29500 (Office Open XML). In particular, it makes clear which of these mechanisms supports lossless round tripping.
Technologies de l'information — Extensions de formats de fichiers Office Open XML — Partie 1: Lignes directrices
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Standards Content (Sample)
TECHNICAL ISO/IEC TR
REPORT 30114-1
First edition
2016-12-15
Information technology — Extensions
of Office Open XML file formats —
Part 1:
Guidelines
Technologies de l’information — Extensions de formats de fichiers
Office Open XML —
Partie 1: Lignes directrices
Reference number
ISO/IEC TR 30114-1:2016(E)
©
ISO/IEC 2016
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ISO/IEC TR 30114-1:2016(E)
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ISO/IEC TR 30114-1:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Adding markup or other data to OOXML documents . 1
4.1 General . 1
4.2 Markup Compatibility and Extensibility (MCE): Ignorable elements and attributes
(ISO/IEC 29500-3) . 1
4.3 MCE: Alternate Content Blocks (ISO/IEC 29500-3) . 2
4.4 MCE: Application-defined extension elements (ISO/IEC 29500-3) . 3
4.5 Embedding foreign Open Packaging Conventions (OPC) parts . 4
Bibliography . 5
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ISO/IEC TR 30114-1:2016(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical
activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work. In the field of information technology, ISO and IEC have established a joint technical committee,
ISO/IEC JTC 1.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 34, Document
description and processing languages.
A list of all parts in the ISO/IEC 30114 series, published under the general title Information technology —
Extensions of Office Open XML file formats, can be found on the ISO website.
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ISO/IEC TR 30114-1:2016(E)
Introduction
ISO/IEC 29500 was designed to allow the addition of markup and other data to Office Open XML
(OOXML) documents, and to allow OOXML applications unaware of such markup and date to provide
reasonable results. ISO/IEC TR 30114-1 provides guidance for such additions, and also specifies a
collection of such additions.
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TECHNICAL REPORT ISO/IEC TR 30114-1:2016(E)
Information technology — Extensions of Office Open XML
file formats —
Part 1:
Guidelines
1 Scope
This document gives guidelines for the use of extensibility mechanisms in ISO/IEC 29500 (Office Open
XML). In particular, it makes clear which of these mechanisms supports lossless round tripping.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Adding markup or other data to OOXML documents
4.1 General
There are two main ways to add extra markup or other data to Office Open XML (OOXML) documents:
— Using the extension mechanisms described in ISO/IEC 29500-3, Markup Compatibility and
Extensibility (MCE) offers three primary mechanisms for extending XML files, each with its own
advantages and disadvantages.
— Embedding foreign Open Packaging Conventions (OPC) parts.
4.2 Markup Compatibility and Extensibility (MCE): Ignorable elements and attributes
(ISO/IEC 29500-3)
The most commonly used extension mechanism, marking elements or attributes as ignorable, allows
lightweight additions to be made to existing markup.
A good use of ignorable markup would be the addition of a custom metadata tag onto a paragraph in a
WordprocessingML document. This could be accomplished by declaring a custom namespace, marking
it as ignorable, and adding the attribute to the p element in that namespace. The relevant portions of the
resulting document.xml part might resemble the following:
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ISO/IEC TR 30114-1:2016(E)
"http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"
xmlns:mymeta="http://mywordprocessorapp.com/metadata" mc:Ignorable="mymeta">
w:rsidRDefault="00120C37">
hello
Ignorable markup can be used anywhere in XML parts and requires minimal markup. It allows custom
markup to be added to documents while retaining the document’s conformance with the standard
and allowing it to be opened by a third-party application without errors. However, ignorable elements
and attributes will almost definitely be lost if file
...
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