Knowledge Tree RDF Binding

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This page describes RDF binding of Knowledge Tree data model.

ER Model and RDF Bindings

Quick Example

<?xml version="1.0" encoding="utf-8"?>
<rdf:RDF
	xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
	xmlns="http://purl.org/rss/1.0/"
>
	<channel rdf:about="http://adapt2.sis.pitt.edu/kt/rest/ktree3509">
		<title rdf:parseType='Literal'>KnowledgeTree:: IS 1022/2710 Database Management</title>
		<link>http://adapt2.sis.pitt.edu/kt/content/Show?id=3509</link>
		<items>
			<rdf:Seq>
				<rdf:li rdf:resource="http://adapt2.sis.pitt.edu/kt/rest/ktree4014"/>
				<rdf:li rdf:resource="http://adapt2.sis.pitt.edu/kt/rest/ktree3521"/>
				<rdf:li rdf:resource="http://adapt2.sis.pitt.edu/kt/rest/ktree3522"/>
				...
			</rdf:Seq>
		</items>
	</channel>
	<item rdf:about="http://adapt2.sis.pitt.edu/kt/rest/ktree4014">
		<rdf:value rdf:datatype='http://www.w3.org/2001/XMLSchema#double'>1.0</rdf:value>
		<title rdf:parseType='Literal'>QuizGuide - Adaptive Quizzes</title>
		<link>http://adapt2.sis.pitt.edu/kt/content/Show?id=4014</link>
	</item>
	<item rdf:about="http://adapt2.sis.pitt.edu/kt/rest/ktree3521">
		<rdf:value rdf:datatype='http://www.w3.org/2001/XMLSchema#double'>1.0</rdf:value>
		<title rdf:parseType='Literal'>Table Creation</title>
		<link>http://adapt2.sis.pitt.edu/kt/content/Show?id=3521</link>
		<rdf:type rdf:resource='http://purl.org/dc/dcmitype/Collection'/>
	</item>
	<item rdf:about="http://adapt2.sis.pitt.edu/kt/rest/ktree3522">
		<rdf:value rdf:datatype='http://www.w3.org/2001/XMLSchema#double'>1.0</rdf:value>
		<title rdf:parseType='Literal'>Table Deletion and Alteration</title>
		<link>http://adapt2.sis.pitt.edu/kt/content/Show?id=3522</link>
		<rdf:type rdf:resource='http://purl.org/dc/dcmitype/Collection'/>
	</item>
	...
</rdf:RDF>

• Node - rss:channel or rss:item depending on context, alternatively dcmitypes:Collection when a folder
  • Node.hasChildNode - rss:items
  • Node.hasParentNode
  • Node.{ordered list of subordinates} - via rdf:Seq subordinate of the rss:items
  • Node.{weight of subordinates}
  • Node.hasCreator - dc:creator
  • Node.creationDate - dc:created
  • Node.modificationDate - dc:modified
  • Node.nodeTitle - rss:item.title
  • Node.nodeDescription - rss:item.description
  • Node.hasNodeType - refine dcmitypes?
  • Node.hasURL - rss:item.link
  • Node.hasURI - implicitly via rdf:about→rss:item
  • Node.hasIcon
  • Node.isFolder - rss:channel and/or dcmitypes:Collection
• User - foaf:Person
• Group - group is a special kind of User entity - foaf:Group
  • User.hasMember - applicable to Group only - foaf:hasMember
  • User.isMemberOf - applicable to User only - as inverse of foaf:hasMember
  • User.hasURI - rdf:about
  • User.hasLogin - foaf:holdsAccount→foaf:OnlineAccount→foaf:accountName
  • User.hasName - foaf:name
  • User.hasPass - unavailable via RDF serialization
  • User.isGroup - via foaf:Group
  • User.hasEmail - SHA1-encoded - foaf:mbox_sha1sum
  • User.hasOrganization
  • User.hasCity
  • User.hasCountry
  • User.hasNote
• Right
  • hasTargetAgent
  • hasRightType
  • hasParentNodeType
  • hasChildNodeType
  • hasSubtreeNode
  • hasQuantity
  • hasDescription
  • hasOwnerFlag
• ItemType - arguably doesn't need RDF serialization
  • itemtypeTitle
  • itemtypeDescription
  • itemtypeType
  • itemtypeURL
  • itemtypeIcon
  • itemtypeClassName
  • itemtypeURLSufix
• RightType - arguably doesn't need RDF serialization
  • righttypeTitle
  • righttypeDescription

See also

• Knowledge Tree
• ADAPT2 RDF Binding