Tripleta Si

Tripletas

RDF

Adriana B. Macas E.Email: [email protected]

Telf: 084855576

Sistemas Basados en el Conocimiento

UNIVERSIDAD TÉCNICA PARTICULAR DE LOJALa Universidad Católica

de Loja

mailto:[email protected]

RDF (Resource Description Framework)

RDF está basado en la idea de identificar los recursos en la Web usando los Uniform Resource Identifiers o URIs, y describiendo los recursos en términos de propiedades simples y valores. Una descripción RDF es un conjunto de proposiciones simples (también llamadas sentencias o declaraciones) y una proposición se conoce también como una tripleta, porque está compuesta de 3 cosas: un sujeto, un predicado y un objeto. Estas sentencias se pueden representar formalmente usando la tripleta (sujeto, predicado, objeto), pero existe otra forma de notación que es mostrar una sentencia mediante grafos dirigidos. Así, en RDF es posible representar declaraciones simples sobre los recursos como un grafo (graph) de nodos y arcos que representan los recursos, y sus propiedades y valores.

Los 3 elementos de una tripleta se representan mediante URIs.

Donde: Subject y Object son llamados nodos Predicate y Property son sinónimos Nodos sin nombre son nodos en blanco Subject puede ser una referencia URI o nodos en blanco Predicate puede ser una referencia URI Object puede ser una referencia URI, literal o un nodo en

blanco.

RDFElementos de una tripleta

RDFOntología: Sistemas Informáticos

DESCRIPCIÓN DE TRIPLETAS

Para poder realizar la validación de las tripletas tanto RDF como OWL se tome como referencia de la siguiente dirección: http://www.w3.org/RDF/Validator

http://www.w3.org/RDF/Validator

CLASES

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:Class rdf:about="http://localhost/default#Computers"> <rdfs:subClassOf rdf:resource="#Sistemas_Informaticos" /> </owl:Class></rdf:RDF>

Tripletas RDFClass: Computers

Código RDF

Tripletas RDF

Elementos RDF

Number Subject Predicate Object

1 http://localhost/default#Computers

http://www.w3.org/1999/02/22-rdf-syntax-ns#type

http://www.w3.org/2002/07/owl#Class

2 http://localhost/default#Computers

http://www.w3.org/2000/01/rdf-schema#subClassOf

http://www.w3.org/RDF/Validator/run/1250270807006#Sistemas_Informaticos

http://localhost/default


http://www.w3.org/1999/02/22-rdf-syntax-ns



http://www.w3.org/2002/07/owl




http://www.w3.org/2000/01/rdf-schema



http://www.w3.org/RDF/Validator/run/1250270807006




Gráfico del modelo de datos

Tripletas RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:Class rdf:about="http://localhost/default#Hardware"> <rdfs:subClassOf rdf:resource="http://localhost/default#Computers" /> <rdfs:subClassOf><owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Version" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf>

Tripletas RDF

Class: Hardware

Código RDF

<rdfs:subClassOf><owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Producer" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf><rdfs:subClassOf><owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Year" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> </owl:Class></rdf:RDF>

Tripletas RDF

Class: Hardware (Cont….)

Tripletas RDF

Elementos RDF


1 http://localhost/default#Hardware





http://localhost/default#Computers

3 genid:A34678 http://www.w3.org/1999/02/22-rdf-syntax-ns#type

http://www.w3.org/2002/07/owl#Restriction4 http://localhost/default

#Hardwarehttp://www.w3.org/2000/01/rdf-schema#subClassOf

genid:A34678

5 genid:A34678 http://www.w3.org/2002/07/owl#onProperty

http://localhost/default#Version

6 genid:A34678 http://www.w3.org/2002/07/owl#cardinality

"1"^^http://www.w3.org/2001/XMLSchema#nonNegativeInteger


http://www.w3.org/2002/07/owl#Restriction



































genid:A34679


http://localhost/default#Producer







genid:A34680


http://localhost/default#Year





























Tripletas RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:Class rdf:about="http://localhost/default#Software"> <rdfs:subClassOf rdf:resource="http://localhost/default#Computers" /> <rdfs:subClassOf><owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Distribution" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf><rdfs:subClassOf>

Tripletas RDFClass: Software

Código RDF

<owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Version" /> <owl:cardinalityrdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf><rdfs:subClassOf><owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Year" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> </owl:Class></rdf:RDF>

Tripletas RDFClass: Software (Cont….)

Tripletas RDFElementos RDF


1 http://localhost/default#Software










genid:A34681


http://localhost/default#Distribution



































Tripletas RDF



genid:A34682


http://localhost/default#Version







genid:A34683


http://localhost/default#Year




























Tripletas RDF

Tripletas RDFClass: LaptopsCódigo RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#"> <owl:Class rdf:about="http://localhost/default#Laptops"> <rdfs:subClassOf rdf:resource="http://localhost/default#Computers" /> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#ProductNumber" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> <rdfs:subClassOf>

Tripletas RDFClass: Laptops

Código RDF <owl: Restriction> <owl:onProperty rdf:resource="http://localhost/default#Series" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Model" /> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> </owl:Class></rdf:RDF>

Subject Predicate Object

http://localhost/default#Laptops rdf: type http://www.w3.org/2002/07/owl#Class

http://localhost/default#Laptops rdf: subClassOf http://localhost/default#Computers

genid:A9927 rdf: type http://www.w3.org/2002/07/owlRestriction

http://localhost/default#Laptops rdf: subClassOf genid:A9927

genid:A9927 owl: onProperty http://localhost/default#ProductNumber

genid:A9927 owl: cardinality 1

genid:A9928 rdf: type http://www.w3.org/2002/07/owl#Restriction

Tripletas RDF

Elementos RDF















genid:A9928 owl: onProperty http://localhost/default#Series




genid:A9929 owl: onProperty http://localhost/default#Model


Tripletas RDF

Elementos RDF








Tripletas RDF

Tripletas RDF

Class: Servers

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#"> <owl:Class rdf:about="http://localhost/default#Servers"> <rdfs:subClassOf rdf:resource="http://localhost/default#Computers"/> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Series"/> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction>

Tripletas RDF

Class: Servers

Código RDF

</owl:Restriction> </rdfs:subClassOf> <rdfs:subClassOf> <owl:Restriction> <owl:onProperty rdf:resource="http://localhost/default#Patent"/> <owl:cardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:cardinality> </owl:Restriction> </rdfs:subClassOf> </owl:Class>

</rdf:RDF>


http://localhost/default#Servers rdf: type http://www.w3.org/2002/07/owl#Class

http://localhost/default#Servers rdf: subClassOf http://localhost/default#Computers


http://localhost/default#Servers rdf: subClassOf genid:A10015

genid:A10015 owl: onProperty genid:A10015



http://localhost/default#Servers rdf: subClassOf genid:A10016

genid:A10016 owl: onProperty http://localhost/default#Patent
















Diego Herrera 28


Tripletas RDF

07/2009

Diego Herrera 29

OBJECT PROPERTIES

07/2009

Tripletas RDF

Object Properties: IsA

Código RDF

<rdf:RDF xmlns="file:/C:/Documents%20and%20Settings/Administrador/Mis%20documentos/UTPL/SISTEMAS%20INFORMATICOS%20Y%20COMPUTACION/X%20CICLO/Sistemas%20Basados%20en%20el%20Conocimiento/Proyecto%20Final/INFORMATICA_v3.owl#” xml:base="file:/C:/Documents%20and%20Settings/Administrador/Mis%20documentos/UTPL/SISTEMAS%20INFORMATICOS%20Y%20COMPUTACION/X%20CICLO/Sistemas%20Basados%20en%20el%20Conocimiento/Proyecto%20Final/INFORMATICA_v3.owl“ xmlns:INFORMATICA_v3="file:/C:/Documents%20and%20Settings/Administrador/Mis%20documentos/UTPL/SISTEMAS%20INFORMATICOS%20Y%20COMPUTACION/X%20CICLO/Sistemas%20Basados%20en%20el%20Conocimiento/Proyecto%20Final/INFORMATICA_v3.owl#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:default="http://localhost/default#" xmlns:owl2xml="http://www.w3.org/2006/12/owl2-xml#" 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:ObjectProperty rdf:about="http://localhost/default#IsA"> <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#SymmetricProperty" /> <rdfs:domain rdf:resource="http://localhost/default#Hardware" /> <owl:inverseOf rdf:resource="http://localhost/default#IsA" /> <rdfs:range rdf:resource="http://localhost/default#tangible%20component" /> </owl:ObjectProperty></rdf:RDF>


Numbe

rSubject Predicate Object

1 http://localhost/default#IsA http://www.w3.org/1999/02/22-rdf-syntax-ns#type

http://www.w3.org/2002/07/owl#ObjectProperty

2 http://localhost/default#IsA http://www.w3.org/1999/02/22-rdf-syntax-ns#type

http://www.w3.org/2002/07/owl#SymmetricProperty

3 http://localhost/default#IsA http://www.w3.org/2000/01/rdf-schema#domain

http://localhost/default#Hardware

4 http://localhost/default#IsA http://www.w3.org/2002/07/owl#inverseOf

http://localhost/default#IsA

5 http://localhost/default#IsA http://www.w3.org/2000/01/rdf-schema#range

http://localhost/default#tangible%20component


























Tripletas RDF

Tripletas RDF

Object Properties: IsPartOf

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:ObjectProperty rdf:about="http://localhost/default#IsPartOf"> <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#TransitiveProperty" /> <rdfs:range rdf:resource="http://localhost/default#Computers" /> <rdfs:domain rdf:resource="http://localhost/default#Hardware" /> <rdfs:domain rdf:resource="http://localhost/default#Software" /> <owl:inverseOf rdf:resource="http://localhost/default#has" /> </owl:ObjectProperty></rdf:RDF>

Tripletas RDF

Elementos RDF

Number


1 http://localhost/default#IsPartOf





http://www.w3.org/2002/07/owl#TransitiveProperty


http://www.w3.org/2000/01/rdf-schema#range



http://www.w3.org/2000/01/rdf-schema#domain




http://localhost/default#Software


http://www.w3.org/2002/07/owl#inverseOf

http://localhost/default#has












































Tripletas RDF

Tripletas RDF

Object Properties: supportOf

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:ObjectProperty rdf:about="http://localhost/default#SupportOf"> <rdfs:domain rdf:resource="#Sistemas_Informaticos" /> <rdfs:range rdf:resource="http://localhost/default#Computers" /> </owl:ObjectProperty></rdf:RDF>

Tripletas RDF

Elementos RDF

Number


1 http://localhost/default#SupportOf


































Tripletas RDF

Tripletas RDF

Object Properties: IsResponsable

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:ObjectProperty rdf:about="http://localhost/default#IsResponsable"> <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#FunctionalProperty" /> <rdfs:range rdf:resource="#Sistemas_Informaticos" /> <rdfs:domain rdf:resource="http://localhost/default#The%20automated%20processing%20of%20information" /> </owl:ObjectProperty></rdf:RDF>

Tripletas RDF

Elementos RDF


1 http://localhost/default#IsResponsable





http://www.w3.org/2002/07/owl#FunctionalProperty






http://localhost/default#The%20automated%20processing%20of%20information
































Tripletas RDF

DATAPROPERTIES

Tripletas RDF

Data Properties: Capacity

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:DatatypeProperty rdf:about="http://localhost/default#Capacity"> <rdfs:domain rdf:resource="http://localhost/default#Hardware" /> <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer" /> </owl:DatatypeProperty></rdf:RDF>

Tripletas RDF

Elementos RDF


1 http://localhost/default#Capacity


http://www.w3.org/2002/07/owl#DatatypeProperty






http://www.w3.org/2001/XMLSchema#integer


















http://www.w3.org/2001/XMLSchema

http://www.w3.org/2001/XMLSchema


Tripletas RDF

Tripletas RDF

Data Properties: Model

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:DatatypeProperty rdf:about="http://localhost/default#Model"> <rdfs:domain rdf:resource="http://localhost/default#Laptops" /> <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string" /> </owl:DatatypeProperty></rdf:RDF>


http://localhost/default#Model rdf: type owl: DatatypeProperty

http://localhost/default#Model rdf: domain http://localhost/default#Laptops

http://localhost/default#Model rdf: range rdf: string

Tripletas RDF

Elementos RDF






Tripletas RDF

Tripletas RDF

Data Properties: Patent

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:DatatypeProperty rdf:about="http://localhost/default#Patent"> <rdfs:domain rdf:resource="http://localhost/default#Laptops" /> <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string" /> </owl:DatatypeProperty></rdf:RDF>


http://localhost/default#Patent rdf: type owl: DatatypeProperty

http://localhost/default#Patent rdf: domain http://localhost/default#Laptops

http://localhost/default#Patent rdf: range rdf: string

Tripletas RDF

Elementos RDF






Tripletas RDF

Tripletas RDF

Data Properties: ProductNumber

Código RDF

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:default="http://localhost/default#"><owl:DatatypeProperty rdf:about="http://localhost/default#ProductNumber"> <rdfs:domain rdf:resource="http://localhost/default#Laptops" /> <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#integer" /> </owl:DatatypeProperty></rdf:RDF>


http://localhost/default#ProductNumber

rdf: type owl: DatatypeProperty


rdf: domain http://localhost/default#Laptops


rdf: range rdf: integer

Tripletas RDF

Elementos RDF









Tripletas RDF

FIN

Education

Tripleta Si