RDF

RDF stands for Resource Description Framework
RDF is a framework for describing resources on the web
- Describing properties for shopping items, such as price and availability
- Describing time schedules for web events
- Describing information about web pages (content, author, created and modified date)
- Describing content and rating for web pictures
- Describing content for search engines
- Describing electronic libraries
RDF is designed to be read and understood by computers
RDF is not designed for being displayed to people
- RDF was designed to provide a common way to describe information so it can be read and understood by computer applications.
- RDF descriptions are not designed to be displayed on the web.
RDF is written in XML
- RDF documents are written in XML. The XML language used by RDF is called RDF/XML.
- By using XML, RDF information can easily be exchanged between different types of computers using different types of operating systems and application languages.

RDF is a part of the W3C's Semantic Web Activity
- W3C's "Semantic Web Vision" is a future where:
- Web information has exact meaning
- Web information can be understood and processed by computers
- Computers can integrate information from the web

RDF is a W3C Recommendation
- RDF became a W3C Recommendation 10. February 2004.

RDF : 웹상의 다양한 정보를 컴퓨터가 확실하게 처리할 수 있는 형태로 기술하는, 시맨틱 웹의 기본계층을 형성하는 데이터모델. 주어-술어-목적어로 구성된 트리플을 기본단위로 하고, 트리플들의 집합인 그래프에 의해 리소스를 기술.
- 리소스란 ‘웹에서 식별할 수 있는 것’을 의미.
- RDF는 특정한 환경을 전제로 하지 않고 처리할 수 있는 형태로 정보를 표현함.

A Resource is anything that can have a URI, such as "http://www.w3schools.com/rdf"
A Property is a Resource that has a name, such as "author" or "homepage"
A Property value is the value of a Property, such as "Jan Egil Refsnes" or "http://www.w3schools.com" (note that a property value can be another resource)

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