IEC TR 63447-2:2024

IEC TR 63447-2 ®
Edition 1.0 2024-01
TECHNICAL
REPORT
colour
inside
Form factor of smart mobile devices –
Part 2: Use cases of multimedia services

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC TR 63447-2 ®
Edition 1.0 2024-01
TECHNICAL
REPORT
colour
inside
Form factor of smart mobile devices –

Part 2: Use cases of multimedia services

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.60  ISBN 978-2-8322-8168-0

– 2 – IEC TR 63447-2:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 Overview . 6
5 Multimedia services depending on form factors. 7
5.1 Multimedia services on flat type SMD . 7
5.1.1 Use cases of audio applications . 7
5.1.2 Use cases of applications with finger touch interaction . 8
5.1.3 Use cases of applications with pen touch interaction . 10
5.1.4 Use cases of applications with drag and drop interaction . 11
5.2 Multimedia services on folded type SMD . 12
5.3 Multimedia services on swivel type SMD . 13
5.4 Future work . 17
Bibliography . 18

Figure 1 – Interaction components for multimedia services . 7
Figure 2 – Pop-up menu action with finger touch interaction . 9
Figure 3 – Content view mode with brush tools . 9
Figure 4 – Pen position detection . 10
Figure 5 – Controller and hand positions . 10
Figure 6 – Drag and drop interaction . 11
Figure 7 – Example of dividing the screen of applications . 12
Figure 8 – Application screen configuration change with interaction . 13
Figure 9 – Multi-window and content share . 13
Figure 10 – Screen configuration of applications . 14
Figure 11 – Screen mode with second screen . 14
Figure 12 – Application position on two displays . 15
Figure 13 – Screen activation of application . 16
Figure 14 – Portrait fixed mode . 16
Figure 15 – Horizontal and vertical swivel mode . 17

Table 1 – Use case items of audio action . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FORM FACTOR OF SMART MOBILE DEVICES –

Part 2: Use cases of multimedia services

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC TR 63447-2 has been prepared by Technical Area 1: Terminal for audio, video and data
services and content, of IEC technical committee 100: Audio, video and multimedia systems
and equipment. It is a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
100/4070/DTR 100/4102/RVDTR
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Report is English.

– 4 – IEC TR 63447-2:2024 © IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63447 series, published under the general title Form factor of smart
mobile device, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
In IEC TR 63447-1, various form factors of SMDs are described. As SMDs have different shapes,
SMDs have their own use cases which are applied for the intuitive use of multimedia services.
In other words, there is the same basic use case framework for a multimedia application, but it
is essential to set different screen configurations and audio interactions for the optimized use
cases, depending on the SMD form factors.
This Technical Report introduces various use cases of multimedia services that depend on three
representative form factors (flat, folded, and swivel type) released so far.

– 6 – IEC TR 63447-2:2024 © IEC 2024
FORM FACTOR OF SMART MOBILE DEVICES –

Part 2: Use cases of multimedia services

1 Scope
This document introduces use cases of multimedia services depending on form factors of smart
mobile devices. It also includes use cases of multimedia applications with user interactions.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
folded posture
condition where the screen or two screens are folded
3.1.2
swivel posture
condition where one of the displays can turn or spin while the other display does not move
3.1.3
context menu
menu in a graphical user interface
3.2 Abbreviated terms
OTT over-the-top
SMD smart mobile device
4 Overview
SMD form factors described in IEC TR 63447-1[1] have their own use
...