ISO/IEC 23007-3:2011
(Main)Information technology — Rich media user interfaces — Part 3: Conformance and reference software
Information technology — Rich media user interfaces — Part 3: Conformance and reference software
ISO/IEC 23007-3:2011 specifies how to test whether data and decoders meet requirements specified by ISO/IEC 23007-1. It also describes the procedures for testing the conformance of widgets and widget managers to the requirements defined in ISO/IEC 23007-1. Widget generators are not addressed specifically.
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INTERNATIONAL ISO/IEC
STANDARD 23007-3
First edition
2011-07-15
Information technology — Rich media
user interfaces
Part 3:
Conformance and reference software
Technologies de l'information — Interfaces d'utilisateur au support
riche —
Partie 3: Conformité et logiciel de référence
Reference number
ISO/IEC 23007-3:2011(E)
©
ISO/IEC 2011
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ISO/IEC 23007-3:2011(E)
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© ISO/IEC 2011
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Published in Switzerland
ii © ISO/IEC 2011 – All rights reserved
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ISO/IEC 23007-3:2011(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Conformance of Widgets.1
4.1 Introduction.1
4.2 Conformance of manifests .1
4.3 Conformance of packages.2
4.4 Conformance of context information .2
4.5 Conformance of the MPEG-U widget scripts.2
5 Conformance of Widget Managers.2
6 Conformance Sequences.3
6.1 Introduction.3
6.2 Sequences.3
6.3 Coverage of MPEG-U features .4
7 Reference software description.7
7.1 Overview and architecture.7
7.2 Reference software description.8
Bibliography.11
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ISO/IEC 23007-3:2011(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
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.
ISO/IEC 23007-3 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
ISO/IEC 23007 consists of the following parts, under the general title Information technology — Rich media
user interfaces:
⎯ Part 1: Widgets
⎯ Part 2: Advanced user interaction (AUI) interfaces
⎯ Part 3: Conformance and reference software
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ISO/IEC 23007-3:2011(E)
Introduction
User interfaces represent a crucial feature for many consumer devices and services. User interfaces have
recently evolved to support more media types including audio, video, 2D or 3D graphics and have become
rich media user interfaces. User interfaces are also moving towards a collection of small dedicated
applications, called Widgets.
Additionally, more and more devices are capable of displaying rich media user interfaces, from desktop
computers, to mobile devices, to home appliances including TV sets. In this heterogeneous environment,
users expect a homogeneous, unified experience when interacting with their devices.
In ISO/IEC 23007, Widgets can be processed by entities running on different devices, called Widget
Managers, in charge of processing and managing the life cycle of the widgets supporting communications with
other entities locally or remotely deployed and enabling widget mobility across devices.
The objective of ISO/IEC 23007 is to provide normative interfaces between Widgets and Widget Managers, to
allow Widgets from different service providers to run, communicate and be transferred within a unique
framework.
ISO/IEC 23007, rich media user interfaces is also known as MPEG-U. ISO/IEC 23007-1 addresses the
normative aspects of the MPEG-U Widgets. In particular, it specifies widget packaging formats, aspects for
widget communications with external entities and for widget mobility. It also contains a technical annex
describing a list of use cases and examples to address such use cases. ISO/IEC 23007-2 addresses
advanced user interaction (AUI) interfaces. This part of ISO/IEC 23007 addresses reference software and
conformance aspects.
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INTERNATIONAL STANDARD ISO/IEC 23007-3:2011(E)
Information technology — Rich media user interfaces —
Part 3:
Conformance and reference software
1 Scope
This part of ISO/IEC 23007 specifies how to test whether data and decoders meet requirements specified by
ISO/IEC 23007-1. It also describes the procedures for testing the conformance of widgets and widget
managers to the requirements defined in ISO/IEC 23007-1.
In this part of ISO/IEC 23007, widget generators are not addressed specifically. A generator can be said to be
an ISO/IEC 23007 generator if it generates widgets compliant with the syntactic and semantic requirements
specified in ISO/IEC 23007-1.
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO/IEC 23007-1, Information technology — Rich media user interfaces — Part 1: Widgets
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 23007-1 apply.
4 Conformance of Widgets
4.1 Introduction
Widgets use standard representations for describing manifests, W3C WPC packages, ISOFF packages and
context information. This clause describes how to check conformance of all these representations.
4.2 Conformance of manifests
The first step for checking conformance of the MPEG-U XML manifest syntax is to validate the XML document
against the relax NG for the configuration document (http://www.w3.org/TR/widgets/#relax-ng-for-the-
configuration-document) provided by the W3C WPC specification. If this step fails, the widget manifest is
considered a non-conformant MPEG-U manifest.
The second step is to check conformance according to the MPEG-U syntax. The electronic attachments of
ISO/IEC 23007-1 provide an XML Schema for that purpose. A conformant W3C WPC configuration document
is a valid MPEG-U manifest if the XML schema validation succeeds.
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ISO/IEC 23007-3:2011(E)
The next step is to verify that the scene constructs referenced in the manifest are present in the scene
description pointed to by the manifest. This verification is specific to the scene description language used.
4.3 Conformance of packages
A widget package is conformant to ISO/IEC 23007 if it is conformant to the W3C WPC specification or if it is a
conformant ISOFF-based widget package.
An ISOFF-based widget package is conformant to ISO/IEC 23007 if the following rules are validated:
⎯ it is a compliant ISO/IEC 14496-12 file or a compliant ISO/IEC 21000-9 file;
⎯ it uses the brand declared in ISO/IEC 23007-1 either in the list of compatible brand or in the major brand;
⎯ it contains a conformant manifest as a primary item and stored in an XML box, with a internet MediaType
and handler type as defined in ISO/IEC 23007-1;
⎯ all resources declared in the manifest with IRI relative to the manifest are described in the item location
box.
4.4 Conformance of context information
A widget context information document is conformant to ISO/IEC 23007 if it is a valid XML file according to the
XML Schema provided as an electronic attachment to ISO/IEC 23007-1.
4.5 Conformance of the MPEG-U widget scripts
Scripts of MPEG-U widgets shall obey the constraints specified in Clause 9 of ISO/IEC 23007-1:2010, as well
as constraints specified in the WAE specification.
5 Conformance of Widget Managers
Widget managers are responsible for the processing widgets, e.g. for providing MPEG-U communication
capabilities to widgets and for managing context information. Normative behaviours of Widgets managers are
demonstrated by the Reference Software.
The following behaviours are defined as non normative:
⎯ Composition and presentation of the scene description language used in the widget;
⎯ Presentation of available widgets to the user and use of a selection mechanism for activation of the full or
simplified representation;
⎯ Transitions between the full and simplified representation;
⎯ Management of Communication privileges;
⎯ Widget communication activation and deactivation.
For some of these non-normative behaviours, utility software is provided.
Conformant MPEG-U widget managers shall be W3C Widgets-compliant user agents, and obey constraints
specified in ISO/IEC 23007-1 as well.
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ISO/IEC 23007-3:2011(E)
6 Conformance Sequences
6.1 Introduction
Electronic attachments are organized in the following fashion:
- directory mp4: widgets packaged in MP4 files (extension .mgt)
- directory wgts: widgets packaged in ZIP files (extension .wgt)
- directory widgets: unpackaged widgets
Widgets are implemented in SVG and ECMA-Script unless specified otherwise.
6.2 Sequences
6.2.1 animatedIcon
This widget has an active icon, animated with scripting.
Directory: widgets/animatedIcon
6.2.2 c1
This c1 widget and its component c1comp test many features of MPEG-U, including activation and
deactivation of a component, binding of multiple interfaces, exchanging various kinds of messages… c1
displays success messages numbered from 000 to 023. One message appears twice as 0--. Any number
missing in the sequence means there is a bug.
Directory: widgets/c1 & widgets/c1comp
6.2.3 c2
This c2 widget and its component c1comp test some features of MPEG-U, in particular the saving and
restoring of a preference. c1 displays success messages numbered from 000. One message appears twice as
0--. Any number missing in the sequence means there is a bug.
Directory: widgets/c2 & widgets/c1comp
6.2.4 core
This core widget and its component comp test the predefined messages from the core interfaces specifically.
Directory widgets/core/main & widgets/core/comp
6.2.5 upnp_light_sw
...
INTERNATIONAL ISO/IEC
STANDARD 23007-3
First edition
2011-07-15
Information technology — Rich media
user interfaces —
Part 3:
Conformance and reference software
Technologies de l'information — Interfaces d'utilisateur au support
riche —
Partie 3: Conformité et logiciel de référence
Reference number
ISO/IEC 23007-3:2011(E)
©
ISO/IEC 2011
---------------------- Page: 1 ----------------------
ISO/IEC 23007-3:2011(E)
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ISO/IEC 23007-3:2011(E)
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