1. Visual modeling and the Web Conceptual browsing with Conzilla Mikael Nilsson Royal Institute of Technology, Stockholm mini@nada.kth.se Conzilla An ontology-based browser

2. Contents Presentation of the institution. Conceptual browsing. Conzilla. Conclusions. How can ontology enhance the Web experience?

3. CID Center for user-oriented Information technology Design Academia  industry and user organizations. Computer science, art, design, and more. http://cid.nada.kth.se Interactive Learning Environments How do we create/present modular, portable learning material?

4. Conceptual topologies Static topologies Content not reusable. Well-defined context. Example: textbook. Dynamic topologies Content reusable. Contextual anarchy. Example: hypertext “In what context am I viewing this?” How do we create reusable content without losing contextual clarity when browsing it?

5. Conceptual browsing Context  content separated. Surf the context instead of the content. Concept-maps are (ontological) context. Concepts linked to content.

6. Conzilla Typed concepts/relations in XML—CORBA —... Can express ontological systems such as OIL (probably). Distributed design à la Web. Path URNs as identifiers. (urn:path:/se/sih/…) IMS/IEEE Learning Object Metadata (LOM). Usability and design.

7. Conzilla in action Web- browser Future: embedding and interaction Content Links to other maps Meta-data

8. Applications Conceptual Explorer –Mathemagics project at CID. Visual browser for –RDF(S)-based systems (OIL, etc.). –Notion, Topic Maps etc. –Meta Object Facility (UML models). Mobile ontology explorer. Etc...

9. Conclusions The Web badly needs semantics. Object modeling à la RDF(S) is a well-proven technique for conceptual organization. The advantages of both are combined in a conceptual browser. We are looking for cooperation possibilities. Interested? http://cid.nada.kth.se/il/conzilla