ISO INTERNATIONAL STANDARD 20247 First edition 2018-01-19 Information and documentation International library item identifier(ILI) Information et documentation Identifiant de document de bibliotheque international (ILIl) Reference number A ISO 20247:2018(E) Iso @IS02018 IS0 20247:2018(E) Contents Page Foreword ..iv Introduction. 1 Scope. 2 Normative references 3 Terms and definitions 4 Structure and syntax of ILII .2 4.1 Structure of ILII ..2 4.2 ISIL 2 4.3 ISCI 2 4.3.1 Structure of ISCI .2 4.3.2 Full stop, percent sign escaping process. 2 4.4 Item identifier. .3 4.4.1 Syntax of item identifier .3 4.4.2 Assignment of item identifier .3 4.4.3 Granularity of the item .3 4.5 Character usage recommendation .3 5 Administration .3 5.1 Persistence. .3 5.2 Transfer of an item .3 Bibliography 4 @ IS0 2018 - All rights reserved iii IS0 20247:2018(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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 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 constitute an endorsement. For an explanation on 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 the following URL: www.iso.org/iso/foreword.html. This document was prepared by Technical Committee ISO/TC 46, Information and documentation, SubcommitteeSc9,ldentificationanddescription iv @ IS0 2018 - All rights reserved