RDF/XML Syntax Specification Ming Jing Team W. Tutorial Overview - Introduction - An XML Syntax for RDF - Syntax Data Model (*) Order - Concept and Standard.

RDF/XML Syntax Specification

Ming Jing

Team W

Tutorial Overview

- Introduction

- An XML Syntax for RDF

- Syntax Data Model (*)

• Order

- Concept and Standard

- Code and reletive triple, graph

• statement mode

- Global Issues(*)

Tutorial Outline

• The idea and macroscopic view

• Example to be analyzed

• Concept mentioned

• Specific Syntax in used

Differents in function extended from "RDF primer"

RDF primer:

This specification:

Mainly talked about the base concept and idea in useliteral, resource, node, blank node, property, xmlns, URI. etc...Mainly talked about the simple document construction an formworkthe child element of an ancestor element,etc...And talked about various ways to abbreviate the syntaxto make property [rdf:type],and so on...

New concept built for descrbing the syntax construcion will be givenMore essential defination of the document construction will be givenMore methods to make document concise will be introduced

The essential of the RDF construction given

1-fundational thought "route":

2-method to abbreviate:

Any complete RDF graph is made up by several "route".The RDF document is stating these routes in order from the top to the bottom of the document.

abbr. makes the document conciser, more human-readable, and more flexible.Of course, this may confuse the beginners.

A pibotal idea

Route

ex:editor

ex:homePage

Tutorial Outline

• The idea and macroscopic view

• Concept mentioned

• Specific Syntax in used

• Example to be analyzed

Concept mentioned in RDF

rdf:nodeID

rdf:ID

rdf:Description

rdf:RDF

rdf:type

rdf:datatype

rdf:about

rdf:Resource

a necessary tag when use RDF

to give URIref of subject resource

to start a statement of resource

addtion information of typed Literal

to mark a Uname node

state resource with relative URIref

this resource is instance of class

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to give URIref of property value

Concept for descibing the struction

empty Element

Property Element

Property Attributes

Node Element

A element representing an arc in graph

A property and its value apear as attribute of a Node Element instead of apearing as a "Property Element"

a element without text between tags

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A element representing a node in graph

Essentially a format to abbreviate the property with literal whose value is literal instead of resource

Literal Excluded

Tutorial Outline

• The idea and macroscopic view

• Example to be analyzed

• Concept mentioned

• Specific Syntax in used

Omit TechnologyBasic technology:abbreviate the different routes which have the same trunk: route 1: a_b_c_d1 route 2: a_b_c_d2<a> <b> <c> <d1> </d1> </c> </b></a><a> <b> <c> <d2> </d2> </c> </b></a>

this is essentially route Mode (property element is omitted)

Omitted:<a> <b> <c> <d1/> <d2/> </c> </b></a>

other omit technology: I. Empty property elements II. Property Attributes III. Property Attributes on empty Property Element IV. Reifying Statements

Omit Technology

Tutorial Outline

• The idea and macroscopic view

• Example to be analyzed

• Concept mentioned

• Specific Syntax in used

Example replaced by other specification

RDF Vocabulary

RDF Document

Event 1Event 2Event 3

...

...

...End Root Event

N-Triples

IF well-formed

INFORSET

extract infoset by XPATH

Events sequence without child

element

Inforset Mapping

Children accessor recursively transformed

Final Mapped by RDF/XML grammar

Q&A and Discussion TIME