ISO/IEC 24661:2023 情報技術 — ユーザー インターフェイス — 全二重音声対話 | ページ 2

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.

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 or www.iec.ch/members_experts/refdocs ).

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 ) or the IEC list of patent declarations received (see https://patents.iec.ch ).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html . In the IEC, see www.iec.ch/understanding-standards .

This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 35, User interfaces.

Introduction

Speech interaction user interface (UI) has been widely used for industrial applications and daily services. For example, it can be applied to automatic customer service in the telecommunication industry as a part of an interactive voice response system. From a communication point of view, a speech interaction UI can be recognized as a duplex-based system which enables bidirectional communication. In the early stages, speech interaction UIs for conventional dialogue systems were generally half duplex (HDX) based and were designed to be in a turn-oriented work mode. As the requirements of human-machine interaction have grown in complexity and diversity, the turn-oriented speech interaction UI has become unfit for a conversation between humans and machines.

Currently, full duplex (FDX) techniques are used in the speech interaction UI to support session-oriented conversations between humans and machines. The most significant differences between turn-oriented and session-oriented speech interactions are continuity and naturalness, which have made great progress in various applications of speech interaction UI, e.g. smart speaker, chatbot, intelligent assistant.

In recent years, a growing number of FDX speech interaction UIs have been studied and developed. This requires a common understanding of general models and specifications through standardization activities. In response to the standardization needs both from industry and academia, this document intends to provide a reference architecture, functional components and technical requirements of FDX speech interaction UI. For the benefit of system designers, developers, service providers and ultimate users, this document is composed of the following clauses:

• Clause 5 describes a functional view and general features of FDX speech interaction;
• Clause 6 provides a reference architecture and functional layers of FDX speech interaction UI;
• Clause 7 specifies the functional requirements regarding each functional layer;
• Clause 8 discusses the processes of FDX speech interaction UI;
• Clause 9 describes security and privacy considerations related to FDX speech interaction UI.

1 Scope

This document specifies user interfaces (UIs) designed for full duplex (FDX) speech interaction. It also specifies the FDX speech interaction model, features, functional components and requirements, thus providing a framework to support natural conversational interfaces between humans and machines. It also provides privacy considerations for applying FDX speech interaction.

This document is applicable to UIs for speech interaction and communication protocols for setting up a session-oriented FDX interaction between humans and machines.

This document does not define the speech interaction engines themselves or specify the details of specific engines, devices and approaches.

2 Normative references

There are no normative references in this document.

3 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:

Bibliography