LRMI Metadata Terms (RDF)


TitleLRMI Terms as RDF
CreatorLRMI Task Group (DC-Education Community)
EditorsPhil Barker
Stuart Sutton
DescriptionThe LRMI specification is a collection of classes and properties for markup and description of educational resources. The specification builds on the extensive vocabulary provided by Schema.org and other standards. LRMI terms not included in schema.org may nevertheless be used to augment and enrich Schema.org markup.
Current Version (Turtle)http://purl.org/dcx/lrmi_terms/
Date Published2015-02-09
Document StatusDCMI Community Specification

Licensed under a Creative Commons Attribution 4.0 International License.


Table of Contents

Index of Terms

  1. Introduction & Definitions
  2. Namespace
  3. Classes
  4. Properties
  5. Version Changes

Index of Terms in the /lrmi-terms/ Namespace

1. Introduction & Definitions

This document is an up-to-date draft specification in RDF of the LRMI 1.1 metadata terms maintained by the Dublin Core Metadata Initiative.

In the following term tables, each term is specified with the following minimal set of attributes:

Name: A token appended to the URI of the LRMI namespace to create the URI of the term.
Label: The human-readable label assigned to the term.
URI: The Uniform Resource Identifier used to uniquely identify a term.
Definition: A statement that represents the concept and essential nature of the term.
Type of Term: The type of term—class or property.
Date Issued/Modified: The date the term was created or modified.

 

Where applicable, the following attributes provide additional information about a term:

 

Description: Additional information about the term or its application.
Subproperty Of: A property of which the described term is a subproperty.
Equivalent Property: A property to which the described term is equivalent (owl:equivalentProperty).
Subclass Of: A class of which the described term is a subclass.
Equivalent Class: A class to which the described term is equivalent (owl:equivalentClass).
Has Domain: Any resource that has a given property is [inferred to be] an instance of one or more classes (rdfs:domain).
Has Range: The values of a property are [inferred to be] instances of one or more classes. (rdfs:range)
Domain Includes: Relates a property to a class that is (one of) the type(s) the property is expected to be used on. (https://schema.org/domainIncludes).
Range Includes: Relates a property to a class that constitutes (one of) the expected type(s) for values of the property. (https://schema.org/rangeIncludes).
Usage Note: A reference to a resource that provides information on how this resource is to be used. (http://purl.org/vocab/vann/usageNote).

2. Namespaces

The DCMI namespace for formal schemes and schemes of domain and practice communities is http://purl.org/dcx/. Specific community specifications will be in directories appended to the base community namespace. Thus, the http://dublincore.org/lrmi-terms/ URI will always resolve to the latest RDF version of the LRMI terms—i.e., the LRMI properties and classes. The http://dublincore.org/lrmi-terms/1.1/ permanently points to the LRMI schema as transferred to DCMI for stewardship.

The names of the latest version of specific properties and classes in the RDF namespace are resolved by appending the term to the LRMI base URI—e.g., http://dublincore.org/dcx/lrmi-terms/. Thus, the following term URI example using the /dcx/ DCMI community space:

http://purl.org/dcx/lrmi-terms/AlignmentObject
http://purl.org/dcx/lrmi-terms/typicalAgeRange

Future controlled vocabularies for LRMI would follow the same namespace pattern. For example, should LRMI create a value vocabulary for use with the lrmi:alignmentType property, the vocabulary might be assigned the URI http://purl.org/dcx/lrmiAlignType/ with individual concepts URI such as http://purl.org/dcx/lrmiAlignType/teaches.

'

3. Classes

AlignmentObject

Name AlignmentObject
Label Alignment Object
URI: http://purl.org/dcx/lrmi-terms/AlignmentObject
Definition: An intangible item that describes an alignment between a learning resource and a node in an educational framework.
Type of Term: rdfs:Class
Subclass Of: schema:Intangible
Equivalent Class: schema:AlignmentObject
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

EducationalAudience

Name EducationalAudience
Label Educational Audience
URI: http://purl.org/dcx/lrmi-terms/EducationalAudience
Definition: An individual or group for whom the learning resource was created or useful.
Type of Term: rdfs:Class
Subclass Of: http://schema.org/Intangible
Equivalent Class: http://schema.org/EducationalAudience
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

4. Properties

alignmentType

Name: alignmentType
Label: Alignment Type
URI: http://purl.org/dcx/lrmi-terms/alignmentType
Definition: A category of alignment between the learning resource and the framework node.
Description: Recommended values include: 'assesses', 'teaches', 'requires', 'textComplexity', 'readingLevel', 'educationalSubject', and 'educationLevel'.
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/alignmentType
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

educationalAlignment

Name: educationalAlignment
Label: Educational Alignment
URI: http://purl.org/dcx/lrmi-terms/educationalAlignment
Definition: An alignment to an established educational framework.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Equivalent Property: http://schema.org/educationalAlignment
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

educationalFramework

Name: educationalFramework
Label: Educational Framework
URI: http://purl.org/dcx/lrmi-terms/educationalFramework
Definition: The framework to which the resource being described is aligned.
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/educationalFramework
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

educationalRole

Name: educationalRole
Label: Educational Role
URI: http://purl.org/dcx/lrmi-terms/educationalRole
Definition: The role that describes the target audience of the content.
Description: [The educational function assumed or part played by the group for whom the resource is intended.]
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/EducationalAudience
http://schema.org/EducationalAudience
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/educationalRole
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

educationalUse

Name: educationalUse
Label: Educational Use
URI: http://purl.org/dcx/lrmi-terms/educationalUse
Definition: The purpose of a work in the context of education.
Description: For example, 'assignment', 'group work'.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/educationalUse
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

interactivityType

Name: interactivityType
Label: Interactivity Type
URI: http://purl.org/dcx/lrmi-terms/interactivityType
Label: Interactivity Type
Definition: The predominant mode of learning supported by the learning resource.
Description: Acceptable values are 'active', 'expositive', or 'mixed'.
Description: Based on, and mappable from, IEEE LOM 5.1: Interactivity Type.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/interactivityType
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

isBasedOnUrl

Name: isBasedOnUrl
Label: Is Based On URL
URI: http://purl.org/dcx/lrmi-terms/isBasedOnUrl
Definition: A resource that was used in the creation of this resource.
Description: This term can be repeated for multiple sources.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2000/01/rdf-schema#Resource
Equivalent Property: http://schema.org/isBasedOnUrl
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

learningResourceType

Name: learningResourceType
Label: Learning Resource Type
URI: http://purl.org/dcx/lrmi-terms/learningResourceType
Definition: The predominant type or kind characterizing the learning resource.
Description: For example, 'presentation', 'handout'.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/learningResourceType
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

targetDescription

Name: targetDescription
Label: Target Description
URI: http://purl.org/dcx/lrmi-terms/targetDescription
Definition: The description of a node in an established educational framework.
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/targetDescription
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

targetName

Name: targetName
Label: Target Name
URI: http://purl.org/dcx/lrmi-terms/targetName
Definition: The name of a node in an established educational framework.
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/targetName
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

targetUrl

Name: targetURL
Label: Target URL
URI: http://purl.org/dcx/lrmi-terms/targetUrl
Definition: The URL of a node in an established educational framework.
Type of Term: rdf:Property
Domain Includes: http://purl.org/dcx/lrmi-terms/AlignmentObject
http://schema.org/AlignmentObject
Range Includes: http://www.w3.org/2001/XMLSchema#anyURI
Equivalent Property: http://schema.org/targetUrl
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

timeRequired

Name: timeRequired
Label: Time Required
URI: http://purl.org/dcx/lrmi-terms/timeRequired
Definition: Approximate or typical time it takes to work with or through this learning resource for the typical intended target audience.
Description: Based on, and mappable from, IEEE LOM 5.9: Typical Learning Time.
Description: For example, 'PT30M' and 'PT1H25M'
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://schema.org/Duration
Equivalent Property: http://schema.org/timeRequired
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

typicalAgeRange

Name: typicalAgeRange
Label: Typical Age Range
URI: http://purl.org/dcx/lrmi-terms/typicalAgeRange
Definition: The typical range of ages the content's intended end user.
Description: For example, '7-9', '18+'.
Description: Based on, and mappable from, IEEE LOM 5.7: Typical Age Range.
Type of Term: rdf:Property
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2001/XMLSchema#string
Equivalent Property: http://schema.org/typicalAgeRange
Is Defined By: http://purl.org/dcx/lrmi-terms/
Date Issued: 2015-01-12

useRightsUrl

Name: useRightsURL
Label: Use Rights URL
URI: http://purl.org/dcx/lrmi-terms/useRightsUrl
Definition: The URL where the owner specifies permissions for using the resource.
Description: For example: 'http://creativecommons.org/licenses/by/3.0/, & 'http://publisher.com/content-use-description'.
Type of Term: rdf:Property
Subproperty Of: http://schema.org/license
Domain Includes: http://schema.org/CreativeWork
Range Includes: http://www.w3.org/2001/XMLSchema#anyURI
Date Issued: 2015-01-12

5. Version Changes

This version declares the LRMI 1.1 specification as an RDF schema. As such, it maintains the core property and class intentions of version 1.1 while:

  • Assigning URI to all LRMI 1.1 properties & classes in the /dcx/lrmi-terms/ namespace;

  • Assigning, where appropriate, domains & ranges as well as schema.org domainIncludes & rangeIncludes where support for inferencing is not intended;

  • Declaring, where appropriate, property/class relationships to LOM elements and DCMI classes/properties where appropriate;

  • Declaring owl:equivalentClass and owl:equivalentProperty relations to schema.org properties & classes;

  • Addition of a missing definition for lrmi:EducationalAudience; and

  • Moving examples of property values from the property definitions to informative/explanatory description for the property.