L4LOD Vocabulary Specification 0.1
Namespace Document 3 January 2013
Abstract
L4LOD (Licenses for Linked Open Data) is a lightweight vocabulary for expressing the licensing terms in the Web of Data. The vocabulary is not intended to propose yet another license, but it is intended to provide the basic means to define in a machine-readable format, i.e., RDF, the existing licensing terms. The vocabulary does not provide an exhaustive set of properties for licenses definition. Implementations are free to extend L4LOD to add further elements.
L4LOD Vocabulary at a Glance
An a-z index of L4LOD terms, by class (categories or types) and by property.
The following figure provides a schematic representation of L4LOD vocabulary.
The L4LOD cross-reference: Listing the L4LOD Classes and Properties
The L4LOD introduces the following classes and properties.
Classes and Properties (full detail)
Classes
Class: l4lod:Attribution
Attribution -
This class is used to express the obligation of attribution to author of the licensed data.
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Class: l4lod:Derivative
Derivative -
This class is used to express the permission to distribute derivative works from the licensed data.
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Class: l4lod:Distribution
Distribution -
This class is used to express the permission to distribute the licensed data.
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Class: l4lod:License
License -
A license is a set of prohibitions, permissions and obligations.
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Class: l4lod:Commercial
Commercial -
The class is used to express the prohibition of commercial use of the licensed data.
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Class: l4lod:Obligation
Obligation -
The class is used to express the obligations associated to the licensed data.
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Class: l4lod:Permission
Permission -
The class is used to express the permissions associated to the licensed data.
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Class: l4lod:Prohibition
Prohibition -
The class is used to express the prohibitions associated to the licensed data.
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Class: l4lod:Reproduction
Reproduction -
This class is used to express the permission of making multiple copies of the licensed data.
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Class: l4lod:ShareAlike
ShareAlike -
This class is used to express the obligation of for the derivative works be licensed under the same terms of the licensed data.
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Class: l4lod:Sharing
Sharing -
This class is used to express the permission to copy, distribute and use the licensed data.
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Properties
Property: l4lod:licensingTerms
licensingTerms -
This property associates the License to the URI of the human-readable text describing the license.
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Property: l4lod:obliges
obliges -
The property defines the obligations associated to the license.
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Property: l4lod:permits
permits -
The property defines the permissions associated to the license.
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Property: l4lod:prohibits
prohibits -
The property defines the prohibitions associated to the license.
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External Vocabulary References