1. Semantic Web Servers Engineering the Semantic Web Graham Moore Ontopia [email_address]

8. Semantic Web Layer Cake Where is the Protocol?

23. RDF Net API – Query RDF Net API Processing Layer Client Op-Prototype: query(ModelReference, Query, QueryLang, ResultsFormat) => StatementSet ModelReference: Reference to the target model for this operation Query: The query to be executed QueryLanguage: Indication of the query language ResultsFormat: Indication of the format of the results to be returned as a set of statements StatementSet: Set of statements returned

24. RDF Net API – GetStatements RDF Net API Processing Layer Client Op-Prototype: getStatements(ModelReference, Subject, Predicate, Object) => StatementSet ModelReference: Reference to the target model for this operation Subject: URI or * (wildcard) Predicate: URI or * Object: URI,literal or * StatementSet: Set of statements returned

25. RDF Net API – InsertStatements RDF Net API Processing Layer Client Op-Prototype: insertStatements(ModelReference, StatementSet) ModelReference: Reference to the target model for this operation StatementSet: Set of RDF statements for the operation

26. RDF Net API – RemoveStatements RDF Net API Processing Layer Client Op-Prototype: removeStatements(ModelReference, StatementSet) ModelReference: Reference to the target model for this operation StatementSet: Set of RDF statements for the operation

27. RDF Net API – PutStatements RDF Net API Processing Layer Client Op-prototype: putStatements(ModelReference, StatementSet) ModelReference: Reference to the target model for this operation StatementSet: Set of RDF statements for the operation

28. RDF Net API - UpdateStatements RDF Net API Processing Layer Client Op-prototype: updateStatements(ModelReference, RemoveSet , InsertSet) ModelReference: Reference to the target model for this operation RemoveSet: Set of RDF statements to be removed InsertSet: Set of RDF statements to be inserted

29. RDF Net API - Options RDF Net API Processing Layer Client Op-prototype: options(ModelReference) => StatementSet ModelReference: Reference to the target model for this operation StatementSet: Results of the operation

33. RDF Data Model in XML Schema <types> <schema targetNamespace='http://www.semanticwebserver.com/rdfnetservice' … > <complexType name=&quot;rdfstatement“ <sequence> <element name=&quot;subject&quot; xsd:type=&quot;xsd:string&quot; /> <element name=&quot;predicate&quot; xsd:type=&quot;xsd:string&quot; /> <element name=&quot;object&quot; xsd:type=&quot;xsd:string&quot; /> <element name=&quot;isObjectLiteral&quot; xsd:type=&quot;xsd:boolean&quot;/> </sequence> </complexType> <complexType name=&quot;rdfstatementvector&quot;> <all> <element name=&quot;item&quot; type=&quot;tns:rdfstatement&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;/> </all> </complexType> </schema> </types>

34. Example SOAP Binding – Update Statements <message name=&quot;updateStatementsRequest&quot;> <part name=&quot;modelid&quot; type=&quot;xsd:string&quot; /> <part name=&quot;statementToRemove&quot; type=&quot;tns:rdfstatementvector&quot;/> <part name=&quot;statementToAdd&quot; type=&quot;tns:rdfstatementvector&quot;/> </message> <operation name=&quot;updateStatements&quot;> <input message=&quot;updateStatementsRequest&quot; /> </operation>

49. Topic Map Server – Fragment Contexts <topic id=“t-1”> <baseName> <baseNameString>Semantic Web Server</baseNameString> </baseName> </topic> If we are adding this, do we want to add a new topic with a new name, or add a name to an existing Topic?