1、 IEEE Standard for Learning Object Metadata Corrigendum 1 Sponsored by the Learning Technology Standards Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 6 May 2011 IEEE Computer Society IEEE Std 1484.12.1-2002/Cor 1-2011 (Corrigendum to IEEE Std 1484.12.1-2002) IEEE Std 1484.12.1-2002/Cor 1
2、-2011 (Corrigendum to IEEE Std 1484.12.1-2002) IEEE Standard for Learning Object Metadata Corrigendum 1 Sponsor Learning Technology Standards Committee of the IEEE Computer Society Approved 31 March 2011 IEEE-SA Standards Board Approved 24 July 2012 American National Standards Institute Abstract: Th
3、is corrigendum clarifies and corrects technical errors, editorial errors, and omissions in IEEE Std 1484.12.1-2002. Keywords: IEEE 1484.12.1, learning object, learning object metadata (LOM), metadata, reuse The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016
4、-5997, USA Copyright 2011 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 6 May 2011. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard
5、for educational classroom use can also be obtained through the Copyright Clearance Center. Copyright 2011 IEEE. All rights reserved. ivIntroduction This introduction is not part of IEEE Std 1484.12.1-2002/Cor 1-2011, IEEE Standard for Learning Object MetadataCorrigendum 1. This corrigendum addresses
6、 editorial changes and technical clarifications to IEEE Std 1484.12.1-2002. It does not affect existing implementations of the standard. Issues, collected by the Learning Technology Standards Committee, were discussed in open web conferences, held from June 2007 until October 2009. The principal cha
7、nges from the existing base standard are: a) The modification of the “order” value for some data elements in the LOMv1.0 base schema from “unspecified” to “unordered.” b) The explicit definition of ordering for element 5.5: Intended End User Role. c) The modification of the vCard examples for elemen
8、ts 2.3.2, 3.2.2 and 8.1: Entity, in conformance with IETF RFC 2425:1998 and IETF RFC 2426:1998, and the addition of a clarification about character-escaping rules. d) The modification of the value space entries for elements 4.4.1.2: Name and 9.1: Purpose, which contained inappropriate line breaks. e
9、) The modification of the value space entry for element 9.2.1: Source, which was incorrectly defined as “Repertoire of ISO/IEC 10646-1:2000.” f) The modification of the syntax of the DateTime element, in conformance with ISO 8601:2000. g) The addition of a clarification about the multiplicity of ele
10、ment 4.2: Size. Copyright 2011 IEEE. All rights reserved. vNotice to users Laws and regulations Users of these documents should consult all applicable laws and regulations. Compliance with the provisions of this standard does not imply compliance to any applicable regulatory requirements. Implemente
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16、rds Association or the IEEE standards development process, visit the IEEE-SA web site at http:/standards.ieee.org. Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to ch
17、eck this URL for errata periodically. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Copyright 2011 IEEE. All rights reserved. viPatents Attention is called to the possibility that implementation of this standar
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20、andard are expressly advised that determination of the validity of any patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Further information may be obtained from the IEEE Standards Association. Copyright 2011 IEEE. All rights reserved. viiParticipants
21、At the time this IEEE standard was completed, the Learning Object Metadata (C/LT/LOMWG12) Working Group had the following membership: Erik Duval, Chair Roberto Javier Godoy, Technical Editor Venkataraman Balaji Phil Barker Avron Barr Yolaine Bourda Dave Clegg Mike Collett Sarah Currier Hugo den Holl
22、ander Stephen Downes S. M. Duncan Jeroen Hamers Andy Heath Wayne Hodgins * Don Holmes Jack Hyde Fanny Klett Scott Lewis David Massart Bernie Monette Brandon Muramatsu Mikael Nilsson Claude Ostyn Daniel Rehak Robby Robson Christian Stracke Stefaan Ternier Schawn Thropp Tom Wason *Chair Emeritus The f
23、ollowing members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. H. Stephen Berger Juan Carreon Keith Chow Geoffrey Darnton Thomas Dineen Sourav Dutta Erik Duval David Fuschi Michael Grimley Randall Groves Rutger A. Heu
24、nks Werner Hoelzl Mark Jaeger Piotr Karocki Susan Land Greg Luri David Massart Gary Michel Brandon Muramatsu Rick Murphy Jonathan Poltrack Gerald Radack Daniel Rehak Bartien Sayogo Gil Shultz Steven Smith Thomas Starai Gerald Stueve Schawn Thropp Acknowledgments The Learning Object Metadata Working
25、Group wishes to thank the Internet Engineering Task Force (IETF) vCard and CardDAV (vcarddav) Working Group for their contribution to the proper interpretation of the vCard Specification IETF RFC 2425:1997, IETF RFC 2426:1998. Copyright 2011 IEEE. All rights reserved. viiiWhen the IEEE-SA Standards
26、Board approved this standard on 31 March 2011, it had the following membership: Richard H. Hulett, Chair John Kulick, Vice Chair Robert M. Grow, Past Chair Judith Gorman, Secretary Masayuki Ariyoshi William Bartley Ted Burse Clint Chaplin Wael Diab Jean-Philippe Faure Alexander Gelman Paul Houz Jim
27、Hughes Joseph L. Koepfinger* David J. Law Thomas Lee Hung Ling Oleg Logvinov Ted Olsen Gary Robinson Jon Walter Rosdahl Sam Sciacca Mike Seavey Curtis Siller Phil Winston Howard L. Wolfman Don Wright *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish
28、Aggarwal, NRC Representative Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Michelle Turner IEEE Standards Program Manager, Document Development Michael Kipness IEEE Standards Program Manager, Technical Program Development Copyright 2011 IEEE. All rights reserved. ixConten
29、ts 6. Base schema . 10 8. DateTime 12 Copyright 2011 IEEE. All rights reserved. xIEEE Standard for Learning Object Metadata Corrigendum 1 NOTEThe editing instructions contained in this corrigendum define how to merge the material contained therein into the existing base standard and its amendments t
30、o form the comprehensive standard. The editing instructions are shown in bold italic. Four editing instructions are used: change, delete, insert, and replace. Change is used to make corrections in existing text or tables. The editing instruction specifies the location of the change and describes wha
31、t is being changed by using strikethrough (to remove old material) and underscore (to add new material). Delete removes existing material. Insert adds new material without disturbing the existing material. Insertions may require renumbering. If so, renumbering instructions are given in the editing i
32、nstruction. Replace is used to make changes in figures or equations by removing the existing figure or equation and replacing it with a new one. Editing instructions, change markings, and this NOTE will not be carried over into future editions because the changes will be incorporated into the base s
33、tandard. IMPORTANT NOTICE: This standard is not intended to ensure safety, security, health, or environmental protection. Implementers of the standard are responsible for determining appropriate safety, security, environmental, and health practices or regulatory requirements. This IEEE document is m
34、ade available for use subject to important notices and legal disclaimers. These notices and disclaimers appear in all publications containing this document and may be found under the heading “Important Notice” or “Important Notices and Disclaimers Concerning IEEE Documents.” They can also be obtaine
35、d on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. 6. Base schema (The remainder of this page is intentionally blank. Table 1 begins on the following page.IEEE Std 1484.12.1-2002/Cor 1-2011 IEEE Standard for Learning Object Metadata Corrigendum1 Copyright 2011 IEEE. A
36、ll rightsreserved. 2Table 1LOMv1.0 base schemaChange item 1.1:of Table 1 as shownbelow:NrNameExplanation SizeOrderValueSpaceDatatypeExample1.1 Identifier A globallyunique label thatidentifies thislearning object. smallest permittedmaximum:10 itemsunordered unspecified- - - Change item 2.3.2 ofTable
37、2as shown belowNrNameExplanation SizeOrderValueSpaceDatatypeExample2.3.2Entity The identification of andinformation about entities (i.e., people, organizations) contributing to this learning object.The entities shall be ordered as mostrelevantfirst.smallest permittedmaximum:40 itemsordered vCard, as
38、 defined byIMC vCard 3.0 (IETF RFC 2425:1998, IETF RFC 2426:1998). CharacterString (smallest permitted maximum: 1000 char) “BEGIN:VCARDN:Friday;JoeFN:JoeFridayTEL:+1-919-555-7878TITLE:AreaAdministrator,AssistantEMAIL;TYPE=INTERNET:VERSION:3.0END:VCARD”“BEGIN:VCARDnFN:Joe Fri-daynTEL:+1-919-555-7878n
39、TI-TLE:AreaAdministrator,AssistantnEMAIL;TYPE=INTERNnET:jfri-nEND:VCARDn”NOTEIn thisexample the onlycharacter-escaping rules applied are those defined inRFC 2426. Other binding-specific character-escapingrulesmay benecessary.IEEE Std 1484.12.1-2002/Cor 1-2011 IEEE Standard for Learning Object Metada
40、ta Corrigendum1 Copyright 2011 IEEE. All rightsreserved. 3Change item 3.1 as shown below: NrNameExplanation SizeOrderValueSpaceDatatypeExample3.1 Identifier A globallyunique label thatidentifies thismetadatarecord. smallest permittedmaximum:10 itemsunordered unspecified- - - Change item 3.2.2 as sho
41、wn below:NrNameExplanation SizeOrderValueSpaceDatatypeExample3.2.2Entity The identification of andinformation about entities (i.e., people, organizations) contributing to this metadatainstance.The entities shall be ordered as mostrelevantfirst.Smallest permittedmaximum:10 itemsordered vCard, as defi
42、ned byIMC vCard 3.0 (IETF RFC 2425:1998, IETF RFC 2426:1998). CharacterString (smallest permitted maximum: 1000 char) “BEGIN:VCARDN:Friday;JoeFN:JoeFridayTEL:+1-919-555-7878TITLE:AreaAdministrator,AssistantEMAIL;TYPE=INTERNET:VERSION:3.0END:VCARD”“BEGIN:VCARDnFN:Joe Fri-daynTEL:+1-919-555-7878nTI-TL
43、E:AreaAdministrator,AssistantnEMAIL;TYPE=INTERNnET:jfri-nEND:VCARDn”NOTEIn thisexample the onlycharacter-escaping rules applied are those defined inRFC 2426. Other binding-specific character-escapingrulesmay benecessary.IEEE Std 1484.12.1-2002/Cor 1-2011 IEEE Standard for Learning Object Metadata Co
44、rrigendum1 Copyright 2011 IEEE. All rightsreserved. 4Change item 4.2 as shown below:NrNameExplanation SizeOrderValueSpaceDatatypeExample4.2 Size The sizeof the digital learning object in bytes (octets).The sizeis represented asadecimalvalue (radix 10). Consequently, onlythe digits “0” through “9” sh
45、ould be used. The unit is bytes, not Mbytes, GB, etc. Thisdataelement shall referto theactualsizeofthislearningobject. Ifthe learning object is compressed, thenthis dataelementshallrefer tothe uncompressed size. NOTE While 4.1:Formatand 4.3:Location canhavemultipleentries per learning object, onlya
46、single value of 4.2: Size is single value of 4.2:Size ispermittedfor each learningobjectmetadatarecord.1 unspecified ISO/IEC 646:1991, but onlythe digits “0”9” CharacterString (smallest permitted maximum:30 char) “4200” IEEE Std 1484.12.1-2002/Cor 1-2011 IEEE Standard for Learning Object Metadata Co
47、rrigendum1 Copyright 2011 IEEE. All rightsreserved. 5Changeitem 4.4.1.2(settingnetscapecommunicator onone line) asshown below:NrNameExplanation SizeOrderValueSpaceDatatypeExample4.4.1.2 Name Name of the required technologytouse this learning object. NOTES1The valuefor this dataelementmay bederivedfr
48、om 4.1:Technical.Format automatically, e.g., “video/mpeg” implies “multi-os.” 2This vocabularyincludesmost valuesin common use at the timethatthis Standardwas approved. 1 unspecified if Type= “operating system” then: pc-dos ms-windows macosunix multi-os none if Type=“browser” then: anynetscape commu
49、nicatornetscapecommunicatorms-internet explorer opera amaya Vocabulary(State) - Change item 5as shown below:NrNameExplanation SizeOrderValueSpaceDatatypeExample5 Educational This categorydescribes the keyeducational or pedagogic characteristics of this learning object. NOTE This is thepedagogical information essential tothose involvedin achieving a quality learning experience.The audiencefor this metadataincludesteachers,managers, authors, andlearners. smallest permitted
