LRMI Metadata Terms (RDF)
| Title | LRMI Terms as RDF |
| Creator | LRMI Task Group (DC-Education Community) |
| Editors | Phil Barker Stuart Sutton |
| Description | The 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 Published | 2015-02-09 |
| Document Status | DCMI Community Specification |
Licensed under a Creative Commons Attribution 4.0 International License.
Table of Contents
Index of Terms in the /lrmi-terms/ Namespace
- Classes
- Properties
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.
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3. Classes
| 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 |
| 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
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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.