1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15943:2011Curriculum Exchange Format(CEF) Data modelBS EN 15943:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 15943:2011.The UK
2、 participation in its preparation was entrusted to TechnicalCommittee IST/43, Information technology for learning, educationand training.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprov
3、isions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 67329 0ICS 35.240.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on
4、31 July 2011.Amendments issued since publicationDate Text affectedBS EN 15943:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15943 April 2011 ICS 35.240.99 English Version Curriculum Exchange Format (CEF) - Data model Format dchange de curriculum (CEF) - Modle de donnes Curriculum-Austausc
5、hformat (CEF) - Datenmodell This European Standard was approved by CEN on 3 March 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date list
6、s and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under
7、the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ge
8、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMU
9、NG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15943:2011: EBS EN 15943:2011EN 15943:2011 (E) 2 Contents Page Foreword 31 Scope 42 Data model 42.1 Table headings .42.2 C
10、EF Information .42.3 Extensions that are part of CEF .62.4 CEF Terms 72.5 CEF termExtensions . 102.6 Relation Sub-Record 112.7 CEF relationTypeNotes 133 Translations . 144 Extensions . 14Annex A (informative) Informative binding 16Bibliography . 21BS EN 15943:2011EN 15943:2011 (E) 3 Foreword This do
11、cument (EN 15943:2011) has been prepared by Technical Committee CEN/TC 353 “Information and Communication Technologies for Learning, Education and Training”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an
12、identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be
13、held responsible for identifying any or all such patent rights. This European Standard for a Curriculum Exchange Format (CEF) specifies a data model in a thesaural based format for exchanging vocabularies relating to curriculum information. It is based partially on an extended application profile of
14、 Zthes version 1.0 http:/zthes.z3950.org but is not restricted to Zthes as an exchange format. It has been produced in the light of implementation experience and the CEF requirements agreed in the CEN Workshop Agreement - Curriculum Exchange Format (CWA 16078, CEN/WS LTS N 576, January 2010). There
15、are three main sets of information in the CEF: information about the whole CEF instance. This is provided using properties from Dublin Core plus some extensions. Information includes date, title, description and identifier; CEF terms. Information including the term name, identifier and type. Though
16、“term” is used throughout as the name for an item in a CEF instance, the model can equally well be used to describe a conceptual approach; relationships between terms as a sub-record of a term. Further information about the background and guidelines on usage can be found in CWA 16078. According to t
17、he CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
18、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15943:2011EN 15943:2011 (E) 4 1 Scope This European Standard is applicable to the digital exchange of information about terms or concepts rela
19、ting to curriculum information. This includes values to be used in metadata to describe learning resources and learner profiles. The main uses of CEF instances and related services are expected to be the provision of: controlled vocabularies; navigation structures; additional curriculum information;
20、 mappings. 2 Data model 2.1 Table headings Label = the preferred name of an element to be used in bindings such as XML. These may vary depending on the binding used. Occ = number of occurrences and obligation. The figure in brackets is the smallest permitted maximum that is the minimum number of val
21、ues (for repeatable elements) a conforming application shall support. It is assumed that when an upper limit is given that is the smallest permitted maximum. Name = the recommended English name that can be presented to users. Some names may not be needed, as they can be implicit in the way that info
22、rmation is presented. A CEF schema could provide alternative names in other languages. 2.2 CEF Information This data model explains the use of various elements (or properties). It does not indicate the order of elements. The following elements are used to describe a Curriculum Exchange Format instan
23、ce. Table 1 Elements to describe a Curriculum Exchange Format instance Label Occ Name Value space Description dc:title 1 CEF Title stringOrLangstring The name of the CEF instance. dc:creator 0* Creator stringOrLangstring The name of the creator of the CEF instance. dc:subject 0* Subject stringOrLang
24、string The topic areas covered by the CEF instance. BS EN 15943:2011EN 15943:2011 (E) 5 Table 1 (continued) Label Occ Name Value space Description dc:description 0* Description stringOrLangstring A description of the CEF instance. dc:publisher 0* Publisher stringOrLangstring The name of the publishe
25、r of the CEF instance. dc:contributor 0* Contributor stringOrLangstring The names of contributors to the CEF instance. dc:date 01 Publication Date date The publication date. dc:type 0* Type string The type of CEF instance. dc:format 0* Format string The format of the CEF instance. dc:identifier 1 CE
26、F Identifier string The main identifier for the CEF instance allocated by the authority. If other identifiers are required they can be added using a thesNote with label altId. dc:source 01 CEF Source string The source for the CEF instance. dc:language 0* (25) Language string The language of the CEF
27、instance (from ISO 639). The primary language first. From a standard controlled vocabulary (two or three letter with extensions). To be specified by the scheme attribute. dc:relation 0* Relation string Items related to the CEF instance. dc:coverage 0* Coverage stringOrLangstring The coverage of the
28、CEF instance. dc:rights 0* Rights stringOrLangstring Rights statement governing the usage of the CEF instance. BS EN 15943:2011EN 15943:2011 (E) 6 Table 1 (continued) resolver 0* Resolver url The resolution service. A url prefix that provides a resolution url when combined with an identification of
29、a term or vocabulary according to specified rule. thesNote 0* (10) Extension extension This is used for CEF extensions. 2.3 Extensions that are part of CEF The following are reserved labels for a CEF thesNote. Table 2 Reserved labels for a CEF thesNote Label Occ Name Value space Description authorit
30、y 01 Authority extension An approved authority that created and owns the CEF instance. Can be used by systems to allocate user permissions. version 01 Version extension The version of the CEF instance. purpose 0* Purpose extension The purpose of the CEF instance taken from a controlled vocabulary th
31、at could include: navigation, mapping, metadata category 0* Category extension The category or topic that is covered by the CEF instance, for example education or spatial coverage. altId 0* Alternative identifer extension An alternative identifier if required in addition to the main identifier. BS E
32、N 15943:2011EN 15943:2011 (E) 7 2.4 CEF Terms The following elements are used to describe a Curriculum Exchange Format term. Table 3 Elements to describe a CEF Term Label Occ Name Value space Description termId 1 Identifier string An opaque string of characters which uniquely identifies the term wit
33、hin a CEF instance. This could be a URI or a local identifier. termName 1 Name stringOrLangstring The name of the term in a form that may be displayed to a user or used as a search term in a target database. relation 0* (100) sub-record A sub-record briefly describing one or more terms related to th
34、is one. termCategory 0* (10) Micro-thesaurus controlled Identifies a term as belonging to a particular topical subset (microthesaurus). termLanguage 01 Language controlledThe primary language of the term. This should be from a standard controlled vocabulary (ISO 639 two or three letter with or witho
35、ut extensions). termQualifier 01 Qualifier controlledOrFreeText An additional string which, if supplied, qualifies the termName. Usually the combination of termName and termQualifier is unique within a thesaurus and the termQualifier is displayed in brackets. Allows for controlled or uncontrolled ex
36、tensions. termStatus 01 Status controlledThe status of the term, which may be active, deactivated or deleted. In general, only active terms should be used to guide searching. A deactivated term (which may have history notes explaining why it was withdrawn) can be reinstated. Adding a term that is id
37、entical to a deactivated term is not recommended. deleted terms can be ignored for all purposes except reconstructing history. BS EN 15943:2011EN 15943:2011 (E) 8 Table 3 (continued) Label Occ Name Value space Description termApproval 01 Approval controlledThe approval status of the term, which may
38、be candidate, approved or rejected. termType 01 Type controlled An indication of the basic type of the term, chosen from a controlled vocabulary that includes PT, ND, NL. PT = preferred term; ND = non-descriptor (non-preferred term); NL = node label. definition 01 Definition stringOrLangstring A def
39、inition of the concept represented by the termName. It is expected that only one definition will be provided with any given language code. scopeNote 01 Scope stringOrLangstring The scope of the use of the term in this CEF instance historyNote 0* (10) History stringOrLangstring Information about chan
40、ges made to the term over time. editorsNote 0* Editor note stringOrLangstring Information about changes made to the term by an editor. termVocabulary 01 Vocabulary string The identifier of the vocabulary the term originates from. sortKey 01 Sort key string An explicit sort key for the term based on
41、application-specific sorting rules to produce order not attainable through a strict alphanumeric sort. The sortKey associated with a term rather than a relation sub-record applies to its sort order throughout the CEF instance. browseRoot 01 Top term controlled Indicates if a term should be displayed
42、 as a top term or not, with value true or false. For example a related term from another vocabulary may not necessarily be wanted as a top term. BS EN 15943:2011EN 15943:2011 (E) 9 Table 3 (continued) Label Occ Name Value space Description termNote 0* (10) extension A note about the term clarifying
43、the meaning or scope of the term. Multiple notes may be included. Each note may also carry an indication of a constraint on the vocabulary of its content, e.g. indicating that the content of a specific note have to be drawn from an identified vocabulary. termUpdate 01 Update controlled The update ac
44、tion required for the record, which may be add or delete. termCreatedDate 01 Created date date The date on which the record defining the term was created. termCreatedBy 01 Creator string The name of the person who created the record defining the term. termModifiedDate 01 Modified date date The date
45、on which the record defining the term was last modified. termModifiedBy 01 Modifier string The name of the person who last modified the record defining the term. BS EN 15943:2011EN 15943:2011 (E) 10 2.5 CEF termExtensions The following are reserved labels for a CEF termNote. Table 4 Reserved labels
46、for a CEF termNote Label Occ Name Value space Description CEFType 01 CEF Type extension A label taken from a controlled vocabulary used to indicate the type of term from a curriculum perspective. The default CEF vocabulary could include objective, topic, action, competency displayNote 01 Display not
47、e extension A note associated with a term that may be used for display purposes. fullText 01 Long term extension A term label that is longer than can be easily managed in user interfaces, but needs to be retained for completeness e.g. parts of a curriculum document. level 0* (10) Level extension An
48、indication of the level that the concept applies to taken from an identified controlled vocabulary. For example Year 1 or Year 2. subject 0* (10) Subject extension The main subject(s) that a concept belongs to. Similar to qualifier but from a set of subjects typically used in curricula taken from an
49、 identified controlled vocabulary. authority 01 Authority extension An approved authority that created and owns the term. Can be used by systems to allocate user permissions. altLabel 0* Alternative label extension This is to provide alternative labels for the concept named by the term, that are expressed as a string or langstring. This is used to support display or retrieval where a separate term is not required such as abbreviations, acronyms or short names. For example maths for mathematics.
