1. The Semantic Web

2. The Web Today Designed for Human to read Cannot express meaning Architecture: URL –Decentralized: Link structure Language: html

3. XML HTML –Tag + Rule XML separates data and its display –Tag XML cannot express meaning DTD design a XML document

4. Semantic Web Designed for computer program to manipulate meaningfully. An extension of the current Web A Knowledge web that enables machines to comprehend semantic documents and data. Express meaning by ontological language.

5. Architecture

6. URI Architecture –Universial Resource Identifier Language –XML + XMLS –RDF + RDFS –DAML + OIL –OWL

7. RDF

8. Technology and Tools Description Logics Frame-based Systems Standard Web Web Service Agents

9. XML Parser DocumentBuilderFactory factory –DocumentBuilder builder Document doc Node root = doc.getDocumentElement() NodeList l = root.getChildNodes() Node current = l.item(i) Node type: DOCUMENT_NODE, ELEMENT_NODE, TEXT_NODE

10. XSLT Transform an XML document to other format