1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationExchanging course relatedinformation Part 1: Course advertising profile SpecificationBS 8581-1:2012BS 8581-1:2012 BRITISH STANDARDPublishing and copyright informationThe BSI copy
2、right notice displayed in this document indicates when the document was last issued. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 78082 0ICS 35.240.99The following BSI references relate to the work on this standard: Committee reference IST/43 Draft for
3、comment 12/30259241 DCPublication historyFirst (present) edition October 2012Amendments issued since publicationDate Text affected The British Standards Institution 2012 iBS 8581-1:2012BRITISH STANDARDContentsForeword ii0 Introduction 11 Scope 12 Normative references 23 Terms and definitions 34 Conf
4、ormance 35 XCRI-CAP documents 46 Namespace 47 Core elements 48 Common elements 69 Common descriptive elements 910 Elements used in the provider element: the element 1111 Elements used in the course element 1112 Elements used in the qualification element 1313 Elements used in the presentation element
5、 1314 Processing XCRI-CAP XML documents 18Bibliography 20List of figuresFigure 1 Overview of the information model 1Summary of pagesThis document comprises a front cover, an inside front cover, pages i to ii, pages 1 to 20, an inside back cover and a back cover.BS 8581-1:2012ii The British Standards
6、 Institution 2012BRITISH STANDARDForewordPublishing informationThis British Standard is published by BSI Standards Limited, under licence from The British Standards Institution, and came into effect on 31 October 2012. It was prepared by Panel IST/43/-/8, UK adoption and of EN 15981 (EuroLMAI), EN 1
7、5943 (CEF) and EN 15982 (MLO), under the authority of Technical Committee IST/43, Information technology for learning, education and training. A list of organizations represented on this committee can be obtained on request to its secretary.Relationship with other publicationsBS 8581-2 provides guid
8、ance and recommendations on how and when the elements and attributes described in BS 8581-1 are to be used.BS 8581-1 describes the structure of an XCRI-CAP1.2 XML document that conforms to BS EN 15982.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) typ
9、e. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purp
10、ort to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. The British Standards Institution 2012 1BS 8581-1:2012BRITISH STANDARD0 IntroductionThe Exchanging Course Rel
11、ated Information (XCRI) Course Advertising Profile (XCRI-CAP) provides an XML description that enables the interoperability of course descriptions or learning opportunities between the course provider and any number of aggregators.XCRI-CAP documents provide an XML format based on BS EN 15982, which
12、means documents that conform to this British Standard have the same underlying semantics as those produced to other bindings of BS EN 15982.XCRI-CAP documents typically consist of a top-level element, encapsulating elements, for the entities providing courses and elements for the descriptions for th
13、e courses offered. Each course has descriptive information available, e.g. topic, syllabus, obtainable qualification, career options. The course is also divided into any number of s, which are the “instances” or “offerings” of the course that a prospective student applies for, which have specific st
14、art and end dates, locations, etc., that can vary in location and mode of study, e.g. a full time and part time presentation, with different durations and start dates.Figure 1 details the main elements of this British Standard.Figure 1 Overview of the information model1 ScopeThis British Standard sp
15、ecifies requirements for applications that produce and aggregate XCRI-CAP documents.It is intended for use by producers and aggregators in the dissemination of course information to prospective students. BS 8581-1:20122 The British Standards Institution 2012BRITISH STANDARDThis British Standard spec
16、ifies requirements for: policy-makers prescribing a consistent approach for product advertisement that conforms to BS EN 15982 to learning opportunity providers; decision-makers specifying or procuring software for advertising or aggregating information about learning opportunities in a format that
17、conforms to BS EN 15982; and software developers writing code for advertising or aggregating information about learning opportunities in a format that conforms to BS EN 15982.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indis
18、pensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.Standards publicationsBS EN 15982, Metadata for learning opportunities (MLO) AdvertisingBS ISO 8601, Data eleme
19、nts and interchange formats Information interchange Representation of dates and times BS ISO 15836:2009, Information and documentation The Dublin Core metadata element set Other publicationsN1 INTERNET ENGINEERING TASK FORCE (IETF). RFC 3986: Uniform resource identifier (URI) Generic syntax viewed 2
20、012-07-12. Available from N2 DUBLIN CORE METADATA INITIATIVE. DCMI terms viewed 2012-07-12. Available from N3 DUBLIN CORE METADATA INITIATIVE. Dublin Core Metadata Element Set, version 1.1 viewed 2012-07-12. Available from N4 INTERNET ENGINEERING TASK FORCE (IETF). RFC 2822: Internet message format
21、viewed 2012-07-16. Available from N5 INTERNET ENGINEERING TASK FORCE (IETF). RFC 1738: Uniform resource locators (URL) viewed 2012-07-17. Available from N6 EUROPEAN COMMITTEE FOR STANDARDIZATION. CEN workshop agreement (CWA) 16077: Educational credit information model viewed 2012-07-12. CEN:2010. Av
22、ailable from N7 INTERNET ENGINEERING TASK FORCE (IETF). BCP47: Tags for identifying languages viewed 2012-07-12. Available from N8 W3C. Date and time formats viewed 2012-07-12. Available from The British Standards Institution 2012 3BS 8581-1:2012BRITISH STANDARD3 Terms and definitionsFor the purpose
23、s of this part of BS 8581, the terms and definitions from BS EN 15982 and the following apply.3.1 attributename/value pair that exists within an element of an XML documentNOTE 1 Attributes are denoted in the text by the use of an “” prefix, e.g. “identifier”.NOTE 2 Attention is drawn to the W3C webs
24、ite: http:/www.w3.org/TR/REC-xml/, for further information about XML documents.3.2 elementlogical component of an XML documentNOTE 1 Elements are denoted in the text by the use of angle brackets, e.g. “”.NOTE 2 Attention is drawn to the W3C website; http:/www.w3.org/TR/REC-xml/, for further informat
25、ion about XML documents.3.3 namespacemechanism for providing uniquely named elements and attributes in an XML documentNOTE 1 Each namespace is identified using a namespace name, typically expressed as a URI, see N1.NOTE 2 Attention is drawn to the W3C website; http:/www.w3.org/TR/xml-names/, for fur
26、ther information about namespaces in XML.3.4 resourceanything that might be identifiedBS ISO 15836:2009, 3.1.13.5 URLuniform resource locator conforming to IETF RFC 3986 N14 ConformanceCOMMENTARY ON CLAUSE 4 There are two classes of application that can conform to this British Standard: a producer a
27、nd an aggregator.A producer is a class of application that produces XCRI-CAP documents. An aggregator is a class of application that aggregates XCRI-CAP documents.Either or both classes can conform to this British Standard.A strictly conforming instance shall be a set of structured information const
28、ituted only of elements and attributes and fully qualified refinements of the elements, as defined in this British Standard.A fully qualified refinement is an element that explicitly extends an element defined by this British Standard. A fully qualified refinement shall be capable of being processed
29、 according to the semantics of the element it extends.A conforming instance may contain additional elements and attributes not defined by this British Standard.A conforming producer shall be capable of generating and sharing strictly conforming instances.A conforming aggregator shall be capable of p
30、rocessing strictly conforming instances.BS 8581-1:20124 The British Standards Institution 2012BRITISH STANDARD5 XCRI-CAP documentsThe producer shall create XCRI-CAP documents that are valid XML documents.The producer shall create XCRI-CAP documents with one of the following elements as its top-level
31、 element: catalog; provider; orcourse.The aggregator shall be able to process a valid XCRI-CAP document.NOTE Both provider and course are allowed as alternative top-level elements to enable REST-style operations to be supported.6 NamespaceElements and attributes shall be identified using the namespa
32、ce: http:/purl.org/xcri/capElements defined by BS EN 15982 shall use the namespace: http:/purl.org/net/mlo Elements defined by BS ISO 15836 and DCMI terms N2 shall use the namespace: http:/purl.org/dc/terms/ NOTE 1 Information on namespace can also be found at http:/www.xcri.co.uk/h2-info-models.htm
33、l.NOTE 2 This British Standard also includes elements defined in other standards, specifically BS EN 15982, BS ISO 15836 and DCMI terms N2.7 Core elements7.1 elementURI: http:/purl.org/xcri/cap#catalog The element shall be the default root element for a feed.NOTE 1 The catalog element does not imply
34、 a relationship between this British Standard and a course catalog. A catalog does not necessarily relate to a concept of a catalog in an originating or consuming system, but rather provides the context for the content of this British Standard.The element shall contain exactly one generated attribut
35、e.The value of the generated attribute shall be the date and time at which the catalog content is generated in BS ISO 8601 format.The catalog element shall contain common elements in accordance with Clause 8.The catalog element shall contain any number of elements as defined in 7.2.NOTE 2 URI stands
36、 for uniform resource identifier. The British Standards Institution 2012 5BS 8581-1:2012BRITISH STANDARD7.2 elementURI: http:/purl.org/xcri/cap#provider The element shall describe an organization that offers one or more courses.The element shall contain: common elements in accordance with Clause 8;
37、location (optional); andcourse (optional, multiple).NOTE See Clause 10 for further details on the child elements of the element.7.3 elementURI: http:/purl.org/xcri/cap#course The element shall describe a learning opportunity offered by a learning provider.NOTE 1 A course is equivalent to a Learning
38、Opportunity Specification, see BS EN 15982.The element shall contain: common elements in accordance with Clause 8; common descriptive elements in accordance with Clause 9; level (optional, multiple); qualification (optional, multiple); presentation (optional, multiple); andcredit (optional, multiple
39、).NOTE 2 See Clause 11 for further details on the child elements of the element.7.4 elementURI: http:/purl.org/xcri/cap#presentation The element shall describe the course offered at a specific time and place, or through specified media.NOTE 1 The element is the entity to which learners apply. Altern
40、ative names for this type of element include course offering and course instance.NOTE 2 The element is equivalent to a Learning Opportunity Instance, see BS EN 15982.The element shall contain: common elements in accordance with Clause 8;common descriptive elements in accordance with Clause 9;(option
41、al);(optional);(optional);(optional);(optional);(optional);(optional, multiple);BS 8581-1:20126 The British Standards Institution 2012BRITISH STANDARD(optional);(optional);(optional);(optional, multiple);(optional, multiple);(optional);(optional);(optional); and(optional, multiple).NOTE 3 See Clause
42、 13 for further details on the child elements of the element.8 Common elements8.1 GeneralEach of the core elements shall use the following set of common elements: (optional, multiple); (optional, multiple); (optional, multiple); (optional, multiple); (optional, multiple, inheritable); (optional, mul
43、tiple); (optional, inheritable); (optional, multiple, inheritable); (optional, multiple, inheritable); (optional, multiple); and(optional).NOTE See BS 8581-2:2012, Clause 7, for guidelines on usage in each specific context.8.2 elementURI:http:/purl.org/dc/elements/1.1/hasPart The element shall confo
44、rm to BS ISO 15836 and shall be used in accordance with BS EN 15982.The element shall use the DCMI Metadata Terms Namespace: http:/purl.org/dc/terms/ N2.8.3 elementURI: http:/purl.org/dc/elements/1.1/isPartof The element shall conform to BS ISO 15836 and shall be used in accordance with BS EN 15982.
45、The element shall use the DCMI metadata terms namespace: http:/purl.org/dc/terms/ N2. The British Standards Institution 2012 7BS 8581-1:2012BRITISH STANDARD8.4 elementURI: http:/purl.org/dc/elements/1.1/contributor The element shall conform to BS ISO 15836 and shall be used in accordance with BS EN
46、15982.The element shall use the Dublin Core Element Set namespace: http:/purl.org/dc/elements/1.1/ N3.8.5 elementURI: http:/purl.org/dc/elements/1.1/date The element shall conform to BS ISO 15836 and shall be used in accordance with BS EN 15982.The element shall use the Dublin Core Element Set names
47、pace: http:/purl.org/dc/elements/1.1/ N3.8.6 elementURI: http:/purl.org/dc/elements/1.1/description The element shall describe the resource. It shall conform to BS ISO 15836 and shall be used in accordance with BS EN 15982.This is a descriptive text element and shall be used in accordance with 14.1.
48、The element shall use the Dublin Core Element Set namespace: http:/purl.org/dc/elements/1.1/ N3.8.7 elementURI: http:/purl.org/dc/elements/1.1/identifier The element shall be an unambiguous reference to the resource within a given context. It shall conform to BS ISO 15836 and shall be used in accord
49、ance with BS EN 15982.The element may be a uniform resource identifier (URI) conforming to the URL scheme in IETF RFC 3986 N1, for example:http:/www.bolton.ac.uk10006841The element shall use the Dublin Core Element Set namespace: http:/purl.org/dc/elements/1.1/ N3.8.8 elementURI: http:/purl.org/dc/elements/1.1/title The element shall be the title of the resource. It shall conform to BS ISO 15836 and shall be used in accordance with BS EN 15982, for example:Ph
