ISO_IEC_21320-1_2015.pdf

Information technology Document Container File Part 1:CoreTechnologies de linformation Fichier conteneur de document Partie 1:Donnes de baseINTERNATIONAL STANDARDISO/IEC21320-1Reference numberISO/IEC 21320-1:2015(E)First edition2015-10-15 ISO/IEC 2015 ii ISO/IEC 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015,Published in SwitzerlandAll rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized otherwise in any form or by any means,electronic or mechanical,including photocopying,or posting on the internet or an intranet,without prior written permission.Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh.de Blandonnet 8 CP 401CH-1214 Vernier,Geneva,SwitzerlandTel.+41 22 749 01 11Fax+41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 21320-1:2015(E)ISO/IEC 21320-1:2015(E)Foreword.ivIntroduction.v1 Scope.12 Normative references.13Termsanddefinitions.14 Requirements.25ProfileofAppnote.25.1 General.25.2 Annotations to Appnote.2AnnexA(informative)Informal summary.4AnnexB(informative)Filenames and interoperability.5Bibliography.8 ISO/IEC 2015 All rights reserved iiiContents Page ISO/IEC 21320-1:2015(E)ForewordISO(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/IEC JTC 1.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).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).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 meaning of ISO specific terms and expressions related to conformity assessment,as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade(TBT)see the following URL:Foreword-Supplementary information.The committee responsible for this document is ISO/IEC JTC 1,Information technology,Subcommittee SC 34,Document description and processing languages.ISO/IEC 21320 consists of the following parts,under the general title Information technology Document Container File:Part 1:Core iv ISO/IEC 2015 All rights reserved ISO/IEC 21320-1:2015(E)IntroductionIt is often useful to combine multiple digital resources into a single digital resource to make them easier to store and process.The combined digital resource may also use data compression to minimize the space needed for storage.This part of ISO/IEC 21320 specifies a format for this purpose.The format is a compatible profile of that defined by the Zip Application Note of PKWARE Inc.The use of Zip-based archive files for digital documents is increasingly common.Within ISO/IEC JTC 1,there are the examples of ISO/IEC 26300 series and ISO/IEC 29500.Outside of the International Standardization system,there are similar uses such as those of the EPUB Open Container Format(from the IDPF)and Widget Packaging and XML Configuration(from the W3C).The technology defined by the Zip Application Note has been in wide use in ICT industries for over twenty years,and the specification has been freely available for much of that time.However,it has never been formally standardized and this lack of standardization presents several challenges to standards(including ISO/IEC Standards)that wish to reference it,including the following:stability of reference:what is the correct reference to give for the Zip Application Note and how can it be ensured that this reference remains available?;intellectual property rights:what,if any,patents are necessary to implement this technology,and is there a subset that may be freely implemented?;cultural and linguistic adaptability:is the Zip Application Note sufficient by itself,or is addi