ISO/IEC INTERNATIONAL STANDARD 30122-2 First edition 2017-02 Information technology User interfaces voice commands - Part 2: Constructing and testing Technologies de I'information - Interfaces utilisateurs - Commandes vocales - Partie 2: Construire et tester Reference number IEC IS0/IEC 30122-2:2017(E) ISO @IS0/IEC2017 IS0/IEC 30122-2:2017(E) Contents Page Foreword ..iv Introduction 1 Scope. 1 2 Normative references. .1 3 Terms and definitions .1 4 Conformity .2 5 Requirements and recommendations 2 5.1 General 2 5.2 Phonetics of phrase for a voice command 2 5.3 Design principle for a voice command 22 5.3.1 Phoneticdescriptionofwords 5.3.2 Ease of pronunciation. 2 5.3.3 Variation of pronunciation 2 5.4 Test of speech recognition engine 3 5.4.1 General 3 5.4.2 Subject. 3 5.4.3 Samples of a voice command 3 5.4.4 Conditions of test 3 5.4.5 Procedure of test. 3 5.4.6 Results. .4 Bibliography 5 IS0/IEC2017-Allrightsreserved iii IS0/IEC30122-2:2017(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/IECJTC1. 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 IsO documents 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 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 constituteanendorsement. 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, Subcommittee SC 35, User interfaces. A list of all parts in the ISO/IEC 30122 series can be found on the ISO website. iv @IS0/IEC2017-Allrightsreserved