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XGraph.owl
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XGraph.owl
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<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [
<!ENTITY owl "http://www.w3.org/2002/07/owl#" >
<!ENTITY dc "http://purl.org/dc/elements/1.1/" >
<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
<!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#" >
<!ENTITY krc "http://www.cs.teilar.gr/ontologies/KRC.owl#" >
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
<!ENTITY graph "http://www.cs.teilar.gr/ontologies/Graph.owl#" >
<!ENTITY KObject "http://www.cs.teilar.gr/ontologies/KObject.owl#" >
<!ENTITY KConcept "http://www.cs.teilar.gr/ontologies/KConcept.owl#" >
<!ENTITY conceptgraph "http://www.cs.teilar.gr/ontologies/ConceptGraph.owl#" >
<!ENTITY LearningObject "http://www.cs.teilar.gr/ontologies/LearningObject.owl#" >
]>
<rdf:RDF xmlns="http://www.cs.teilar.gr/ontologies/XGraph.owl#"
xml:base="http://www.cs.teilar.gr/ontologies/XGraph.owl"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:LearningObject="http://www.cs.teilar.gr/ontologies/LearningObject.owl#"
xmlns:krc="http://www.cs.teilar.gr/ontologies/KRC.owl#"
xmlns:conceptgraph="http://www.cs.teilar.gr/ontologies/ConceptGraph.owl#"
xmlns:KObject="http://www.cs.teilar.gr/ontologies/KObject.owl#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xmlns:KConcept="http://www.cs.teilar.gr/ontologies/KConcept.owl#"
xmlns:graph="http://www.cs.teilar.gr/ontologies/Graph.owl#"
xmlns:owl="http://www.w3.org/2002/07/owl#"
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<owl:Ontology rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl">
<dc:date rdf:datatype="&xsd;date">January 11, 2011</dc:date>
<dc:creator rdf:datatype="&xsd;string">Takis Hartonas</dc:creator>
<rdfs:comment rdf:datatype="&xsd;string">The fourth major step in the construction of a CROP Learning Object is the construction of an XGraph (Execution Graph). Multiple XGraphs may be defined, for the same Learning Objects, corresponding to different ways to sequence the teaching material.
The XGraph is built on top of the KRC. It does not contain the KRC as a subgraph and there is no 1-1 correspondance between the KRC Nodes and Edges and the XGraph nodes and edges.
The XGraph consists of three kinds of nodes:
(a) Dialogue nodes
(b) Control nodes and
(c) LearningAct nodes
Every KRCNode is exploded to an XGraph with a single leaf and a single top node. This means that the unordered LearningObject list associated to the KRCNode is given a graph structure, capturing precedence in execution. Furthermore, Dialogue and ControlNodes may be inserted at points specified by the creator of the CROP Learning Object under construction.
The XGraphs obtained by exploding KRCodes are subgraphs of the XGraph constructed for the entire KRC.
The leaf and top nodes of the XGraphs obtained by exploding KRCNodes are linked by edges iff there were edges in the KRC graph linking the corresponding KRCNodes.</rdfs:comment>
<owl:imports rdf:resource="http://www.cs.teilar.gr/ontologies/KRC.owl"/>
</owl:Ontology>
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Annotation properties
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<owl:AnnotationProperty rdf:about="&dc;creator"/>
<owl:AnnotationProperty rdf:about="&dc;date"/>
<owl:AnnotationProperty rdf:about="&rdfs;comment"/>
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Datatypes
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Object Properties
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#hasAssociated -->
<owl:ObjectProperty rdf:about="&graph;hasAssociated"/>
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#hasNode -->
<owl:ObjectProperty rdf:about="&graph;hasNode"/>
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#isSubGraphOf -->
<owl:ObjectProperty rdf:about="&graph;isSubGraphOf">
<owl:inverseOf rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#hasSubgraph"/>
</owl:ObjectProperty>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#hasSubgraph -->
<owl:ObjectProperty rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#hasSubgraph"/>
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Data properties
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#hasExplanationParagraph -->
<owl:DatatypeProperty rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#hasExplanationParagraph">
<rdfs:range rdf:resource="&xsd;string"/>
</owl:DatatypeProperty>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#hasThreshold -->
<owl:DatatypeProperty rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#hasThreshold">
<rdfs:range rdf:resource="&xsd;float"/>
</owl:DatatypeProperty>
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// Classes
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<!-- http://www.cs.teilar.gr/ontologies/ConceptGraph.owl#ConceptGraph -->
<owl:Class rdf:about="&conceptgraph;ConceptGraph"/>
<!-- http://www.cs.teilar.gr/ontologies/ConceptGraph.owl#ConceptGraphNode -->
<owl:Class rdf:about="&conceptgraph;ConceptGraphNode">
<owl:disjointWith rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#Graph -->
<owl:Class rdf:about="&graph;Graph"/>
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#Group -->
<rdf:Description rdf:about="&graph;Group">
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasAssociated"/>
<owl:someValuesFrom rdf:resource="&krc;KRCNode"/>
</owl:Restriction>
</rdfs:subClassOf>
</rdf:Description>
<!-- http://www.cs.teilar.gr/ontologies/Graph.owl#Node -->
<owl:Class rdf:about="&graph;Node"/>
<!-- http://www.cs.teilar.gr/ontologies/KRC.owl#KRC -->
<owl:Class rdf:about="&krc;KRC"/>
<!-- http://www.cs.teilar.gr/ontologies/KRC.owl#KRCNode -->
<owl:Class rdf:about="&krc;KRCNode">
<owl:disjointWith rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/LearningObject.owl#LearningObject -->
<owl:Class rdf:about="&LearningObject;LearningObject"/>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#ControlNode -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#ControlNode">
<rdfs:subClassOf rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
<owl:disjointWith rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#DialogueNode"/>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#DialogueNode -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#DialogueNode">
<rdfs:subClassOf rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
<owl:disjointWith rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#LearningActNode"/>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#LearningActNode -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#LearningActNode">
<owl:equivalentClass>
<owl:Class>
<owl:intersectionOf rdf:parseType="Collection">
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
<owl:Class>
<owl:unionOf rdf:parseType="Collection">
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasAssociated"/>
<owl:allValuesFrom rdf:resource="&KObject;PhysicalLocation"/>
</owl:Restriction>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasAssociated"/>
<owl:allValuesFrom rdf:resource="&LearningObject;LearningObject"/>
</owl:Restriction>
</owl:unionOf>
</owl:Class>
<owl:Class>
<owl:unionOf rdf:parseType="Collection">
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasAssociated"/>
<owl:onClass rdf:resource="&KObject;PhysicalLocation"/>
<owl:qualifiedCardinality rdf:datatype="&xsd;nonNegativeInteger">1</owl:qualifiedCardinality>
</owl:Restriction>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasAssociated"/>
<owl:onClass rdf:resource="&LearningObject;LearningObject"/>
<owl:qualifiedCardinality rdf:datatype="&xsd;nonNegativeInteger">1</owl:qualifiedCardinality>
</owl:Restriction>
</owl:unionOf>
</owl:Class>
</owl:intersectionOf>
</owl:Class>
</owl:equivalentClass>
<rdfs:subClassOf rdf:resource="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#ParGroup -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#ParGroup">
<rdfs:subClassOf rdf:resource="&graph;Group"/>
<rdfs:comment>A ParGroupNode (Parallel Group Node) is a set of nodes such that all must be traversed, in whatever order. As a graph it is represented by the complete graph on the set of nodes in the ParGroup. It may be inserted as a subgraph of another XGraph by links (edges) to and from any two of its nodes (one for entering the ParGroup and one for leaving it).</rdfs:comment>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#SeqGroup -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#SeqGroup">
<rdfs:subClassOf rdf:resource="&graph;Group"/>
<rdfs:comment>A SeqGroupNode (Sequential Group Node) is a set of XNodes, linked sequentially by edges. Therefore, a SeqGroupNode has a unique leaf node and a unique top node, by means of which it can be inserted in a larger XGraph.</rdfs:comment>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#XGraph -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XGraph">
<rdfs:subClassOf rdf:resource="&graph;Graph"/>
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasNode"/>
<owl:allValuesFrom>
<owl:Class>
<owl:unionOf rdf:parseType="Collection">
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#ParGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#SeqGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:unionOf>
</owl:Class>
</owl:allValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasLeafNode"/>
<owl:someValuesFrom>
<owl:Class>
<owl:unionOf rdf:parseType="Collection">
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#ParGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#SeqGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:unionOf>
</owl:Class>
</owl:someValuesFrom>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<owl:Restriction>
<owl:onProperty rdf:resource="&graph;hasTopNode"/>
<owl:onClass>
<owl:Class>
<owl:unionOf rdf:parseType="Collection">
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#ParGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#SeqGroup"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:unionOf>
</owl:Class>
</owl:onClass>
<owl:qualifiedCardinality rdf:datatype="&xsd;nonNegativeInteger">1</owl:qualifiedCardinality>
</owl:Restriction>
</rdfs:subClassOf>
<rdfs:comment rdf:datatype="&xsd;string">The XGraph is built on top of the KRC. It does not contain the KRC as a subgraph and there is no 1-1 correspondance between the KRC Nodes and Edges and the XGraph nodes and edges.
The XGraph consists of three kinds of nodes:
(a) Dialogue nodes
(b) Control nodes and
(c) LearningAct nodes
Every KRCNode is exploded to an XGraph with a single leaf and a single top node. This means that the unordered LearningObject list associated to the KRCNode is given a graph structure, capturing precedence in execution. Furthermore, Dialogue and ControlNodes may be inserted at points specified by the creator of the CROP Learning Object under construction.
The XGraphs obtained by exploding KRCodes are subgraphs of the XGraph constructed for the entire KRC.
The leaf and top nodes of the XGraphs obtained by exploding KRCNodes are linked by edges iff there were edges in the KRC graph linking the corresponding KRCNodes.</rdfs:comment>
</owl:Class>
<!-- http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode -->
<owl:Class rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode">
<rdfs:subClassOf rdf:resource="&graph;Node"/>
</owl:Class>
<!--
///////////////////////////////////////////////////////////////////////////////////////
//
// General axioms
//
///////////////////////////////////////////////////////////////////////////////////////
-->
<rdf:Description>
<rdf:type rdf:resource="&owl;AllDisjointClasses"/>
<owl:members rdf:parseType="Collection">
<rdf:Description rdf:about="&conceptgraph;ConceptGraphNode"/>
<rdf:Description rdf:about="&krc;KRCNode"/>
<rdf:Description rdf:about="http://www.cs.teilar.gr/ontologies/XGraph.owl#XNode"/>
</owl:members>
</rdf:Description>
</rdf:RDF>
<!-- Generated by the OWL API (version 3.2.3.1824) http://owlapi.sourceforge.net -->