References Bfz
Balkir, N.H., Ozsoyoglu, G., Ozsoyoglu, Z.M. 2002 . A graphical query language VISUAL and its query processing. IEEE Transactions on Knowledge and Data Engineering, 14 5 955-978. Berners-Lee, T. 1998 . Semantic WebRoadmap. Available Bremdal, B., Johansen, F. 2000 . CORPORUM technology and applications. White paper, CognIT a.s, Norway. Brickley, D., Guha, R.V. 2003 . RDF Vocabulary Description Language 1.0 RDF Schema. W3C Working Draft, January 23, 2003. Available http www.w3.org TR rdf-schema ....
The Graphical Ontology Designer Environment
Different building blocks and ideas are presented, which are used as a foundation for building the Graphical Ontology Designer Environment GODE . An ontology is most often defined in these words An ontology is an explicit specification of a conceptualisation Gruber, 1993 . In this chapter, the functionality and capabilities of GODE are described, and some preliminary parts of what the Graphical User Interface GUI will look like are included. The problem with existing ontology development tools...
Aduna AutoFocus
The last system we discuss is AufoFocus, a commercial application developed at Aduna that brings semantic, multidimensional information visualization and navigation to everyone's desktop. It lets users oversee and access the overwhelming amount of information that they may have in their personal information sources. AutoFocus discloses a user's personal information sources, such as files stored on a hard drive, e-mails, frequently used Web sites, and intranets. Its interface lets the user...
Visualization Techniques
Many visualization techniques and metaphors are currently available to represent complex data, in particular textual interfaces, graphs, trees, and maps. Protege is a textual editor and browser for knowledge models, as described by Noy et al. 2001 . It maybe used for Topic Maps, RDF graphs, and ontologies. An example of ontology visualization with Protege is given in Figure 4.3. This tool presents a hierarchy of terms multiple inheritance is possible in this case terms appear several times in...

