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    BS PD IEC PAS 62883-2014 The universAAL framework for user interaction in multimedia AAL spaces《多媒体AAL空间内用户交互用通用AAL框架》.pdf

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    BS PD IEC PAS 62883-2014 The universAAL framework for user interaction in multimedia AAL spaces《多媒体AAL空间内用户交互用通用AAL框架》.pdf

    1、BSI Standards Publication The universAAL framework for user interaction in multimedia AAL spaces PD IEC/PAS 62883:2014National foreword This Published Document is the UK implementation of IEC/PAS 62883:2014. The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio,

    2、 video and multimedia systems and equipment. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Stan

    3、dards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 84074 6 ICS 13.180; 33.160.60 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 3

    4、1 March 2014. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD IEC/PAS 62883:2014 IEC PAS 62883 Edition 1.0 2014-03 PUBLICLY AVAILABLE SPECIFICATION PRE-STANDARD The universAAL framework for user interaction in multimedia AAL spaces INTERNATIONAL ELECTROTECHNIC

    5、AL COMMISSION V ICS 13.180; 33.160 PRICE CODE ISBN 978-2-8322-1452-7 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside PD IEC/PAS 62883:2014 2 IEC PAS 62883:2014 IEC 2014 CONTENTS

    6、FOREWORD . 4 INTRODUCTION . 6 1 Scope 8 2 Normative references 9 3 Terms, definitions and abbreviations . 9 3.1 Terms and definitions 9 3.2 Abbreviation 12 4 The Specification of the universAAL UI Framework 12 4.1 Overview. 12 4.2 Analysis of the relationships between UI Handlers and I/O Channels 13

    7、 4.3 Dialog descriptions . 15 4.4 The Adaptation Concept 18 4.4.1 Overview . 18 4.4.2 Responsibilities of Applications 18 4.4.3 Responsibilities of UI handlers . 19 4.4.4 Responsibilities on the brokerage layer . 20 4.5 Provisions of the UI Framework 22 4.5.1 Introduction . 22 4.5.2 The UI Bus and i

    8、ts brokerage protocols . 22 4.5.3 The dialog manager and its role in assisting the UI Bus . 28 4.5.4 The Resource Manager . 30 Annex A (informative) Use cases . 31 A.1 Use Case: Supporting rich human computer interaction 31 A.2 Use Case: Healthy Lifestyle Service Package Use Case (universAAL) 32 Ann

    9、ex B (informative) An Overview of the universAAL Project . 33 Bibliography 35 Figure 1 Paradigm shift from HCI to HEI 6 Figure 2 logical separation of application and presentation layers 7 Figure 3 The scope of the specified UI framework marked by the green colour 8 Figure 4 The notion of AAL spaces

    10、 9 Figure 5 The need of smart environments to utilize channels for bridging between the physical world and the virtual realm 10 Figure 7 The notion of a smart environment . 11 Figure 8 An open system for plugging in applications and UI handlers independently from each other 13 Figure 9 Channel bindi

    11、ng by I/O devices 13 Figure 10 The notion of a driver with the case of a UPNP-aware driver 14 Figure 11 The case of a universAAL aware driver 14 Figure 12 Possible relationship between UI handlers and drivers . 15 Figure 13 The dialog package based on the notion of a form . 16 Figure 14 A possible g

    12、raphical visualization of the mapping between dialog types and the predefined standard groups 17 Figure 15 The universAAL framework for supporting adaptivity, which builds on top of the universAAL context and service buses (see footnote 4) 18 PD IEC/PAS 62883:2014IEC PAS 62883:2014 IEC 2014 3 Figure

    13、 16 A model for describing access impairments 20 Figure 17 Summary of the adaptation parameters 21 Figure 18 The components comprising the universAAL UI framework . 22 Figure 19 The main messages exchanged on the UI Bus . 23 Figure 20 The notion of a UI request as constructed by applications 23 Figu

    14、re 21 Overview of the sequence of actions when the priority check is positive . 24 Figure 22 The case of switching to a new UI handler when handling changes in the context 25 Figure 24 The abstract class to be extended by applications that want to send UI requests to the UI bus . 28 Figure 25 The ab

    15、stract class to be extended by UI handlers that accept UI requests forwarded by the UI bus for rendering . 28 Figure 26 The interface of the UI Bus . 28 Figure 27 Access to the resources managed by the RM . 30 Figure B.1 Project ID Card . 33 Figure B.2 The three pillars of the universAAL platform 34

    16、 PD IEC/PAS 62883:2014 4 IEC PAS 62883:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ THE UNIVERSAAL FRAMEWORK FOR USER INTERACTION IN MULTIMEDIA AAL SPACES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all natio

    17、nal 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

    18、 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. In

    19、ternational, 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

    20、 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 recommendatio

    21、ns 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 us

    22、er. 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

    23、 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 c

    24、ertification 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

    25、 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 referen

    26、ces cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for id

    27、entifying any or all such patent rights. A PAS is a technical specification not fulfilling the requirements for a standard, but made available to the public. IEC-PAS 62883 has been processed by IEC technical committee 100: Audio, video and multimedia systems and equipment. The text of this PAS is ba

    28、sed on the following document: This PAS was approved for publication by the P-members of the committee concerned as indicated in the following document Draft PAS Report on voting 100/2189/PAS 100/2228/RVD Following publication of this PAS, which is a pre-standard publication, the technical committee

    29、 or subcommittee concerned may transform it into an International Standard. PD IEC/PAS 62883:2014IEC PAS 62883:2014 IEC 2014 5 This PAS shall remain valid for an initial maximum period of 3 years starting from the publication date. The validity may be extended for a single period up to a maximum of

    30、3 years, at the end of which it shall be published as another type of normative document, or shall be withdrawn. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents.

    31、Users should therefore print this document using a colour printer. PD IEC/PAS 62883:2014 6 IEC PAS 62883:2014 IEC 2014 INTRODUCTION Ambient Assisted Living (AAL) strives to ensure the independence, safety, wellbeing and autonomy of users by using ICT, including multimedia systems and equipment and a

    32、udio / video communication, for creating intelligent living environments that react to the needs of users by providing relevant assistance. Such intelligent environments can be labelled as AAL Spaces, which are characterized by a number of devices that can be stationary, mobile or embedded within ot

    33、her objects. Multiple users can find themselves in an AAL space simultaneously, possibly moving around within the AAL space, and entering and leaving it dynamically. These characteristics introduce new challenges when it comes to handling interaction with users in AAL spaces. With the assumption tha

    34、t people are surrounded by highly distributed systems of networked interactive devices, AAL intensifies the paradigm shift from Human-Computer Interaction (HCI) to Human-Environment Interaction (HEI). One of the main challenges of HEI is to keep the multiplicity of functional units hidden to humans

    35、while making the functionality provided by them easily available based on natural ways of interaction. Instead of controlling each device separately, users should be able to interact with a whole device ensemble as one single unit and articulate goals instead of looking for functionality at the leve

    36、l of each single device separately (Figure 1). Figure 1 Paradigm shift from HCI to HEI Another important challenge for designers and developers of systems in AAL spaces is that interaction with applications can take place through a variety of devices at different locations with different capabilitie

    37、s in terms of serving a single user privately or not, supported modalities, modality-specific parameters such as screen size and resolution, power consumption, etc., which implies the need in AAL spaces to logically separate the application layer from the presentation layer (Figure 2). Consequently,

    38、 applications have to use abstract user interfaces that are device-, modality-, and layout-neutral and allow to postpone the rendering of the user interface to the execution- time, which makes it possible to interact with users in a personalized and situation-aware way. The separation of concerns al

    39、so facilitates the creation of clean programming interfaces based on an open and flexible architecture that have to enable the plug-and-play of both applications and user interaction handlers (UI handlers), and allows UI handlers to serve arbitrary applications. The resulted openness complements the

    40、 openness supported by IEC 62481-2 that enables the sharing of multimedia content and streams within an ensemble of devices. It adds the PD IEC/PAS 62883:2014IEC PAS 62883:2014 IEC 2014 7 perspective of sharing the input and output channels provided by those devices 1to the DLNA perspective of conte

    41、nt sharing. Figure 2 logical separation of application and presentation layers _ 1This understanding of the term I/O channel is based on the actual roles of devices that enable interaction with human users: a display provides a visual output channel, a loudspeaker, an audio output channel, and a mic

    42、rophone, an audio input channel. PD IEC/PAS 62883:2014 8 IEC PAS 62883:2014 IEC 2014 THE UNIVERSAAL FRAMEWORK FOR USER INTERACTION IN MULTIMEDIA AAL SPACES 1 Scope This Publicly Available Specification (PAS) specifies a framework for adaptive handling of explicit interaction among humans and AAL spa

    43、ces. This is based on a differentiation between explicit and implicit interaction as a consequence of the paradigm shift from Human- Computer Interaction to Human-Environment Interaction, further explained in the definition of the latter term. As a framework, a main subject matter of the specificati

    44、on is the identification of relevant areas for further standardization, thereby also looking at the interrelationships among the identified areas. The PAS also provides a first extensible specification in some of those areas. The proposed UI framework has been derived from the logical separation of

    45、application and presentation layers as depicted by Figure 2, and encompasses the following elements (Figure 3): Analysis of the relationships between UI handlers and I/O devices without specifying possible languages, models, or abstract APIs for interaction with these devices, as there are certain i

    46、nternational standardization activities that go in this direction 2 ; the language and model for describing application-specific dialogs / user interfaces as part of UI requests made by applications to the UI framework; the adaptation concept and parameters needed to achieve adaptive UI and the way

    47、they affect UI requests; and Protocols used by the UI framework to broker between UI handlers and applications as pluggable components. Figure 3 The scope of the specified UI framework marked by the green colour _ 2For example 3 on representing user input coming from input devices. Brokerage Applica

    48、tion UI Request UI Response (forwarded) UI Request (forwarded) UI Response UI Handler I/O Device not covered PD IEC/PAS 62883:2014IEC PAS 62883:2014 IEC 2014 9 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for i

    49、ts application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62481-2, Digital living network alliance (DLNA) home networked device interoperability guidelines Part 2: DLNA media formats ISO/IEC Guide 71:2001, Guidelines for standards developers to address the needs of older persons and persons with disabilities


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