1. My Experience in Building the CoBrA Eclipse Viewer
Harry Chen eBiquity Meeting

2. Eclipse is many things in one!
It’s an open source project
It’s an open community
It’s a platform for tool integration
It’s a technology for building reusable and extensible software
It’s a Java IDE

3. Eclipse & CoBrA Why am I interested in Eclipse?
Need a GUI for monitoring and browsing the internal process of the Broker
Extensible
Cross-platform (Windows, Mac, Linux)
Familiar user interface and widgets
Easy to install and patch updates
JSP/Servlets & Java Swing -- no good!

4. Some Eclipse Vocabularies
Eclipse Plug-in: a modular component that contributes certain functionality to the platform
Eclipse Plug-in Feature: a special plug-in that a developer creates to enable “one-click” install/update of his own plug-in contribution

5. Local Toolbar
View
Perspective

6. CoBrA Eclipse Viewer (CEV)
A tool for browsing the knowledge and policy that are stored in the Context Broker and for monitoring the reasoning process of the Broker.
It can be used as a stand alone application for browsing OWL ontology documents or models.
Inspired by the Java Spider application

7. Demo ...

8. Few words about Eclipse
Why should you be interested in the Eclipse?
For the researchers, it’s a great tool for building professional looking GUI front end
For the students, it’s a hot skill to put on your resumes. Eclipse is HOT… (Mozilla, Sun, SemWeb central and more..)

9. Few more words about Eclipse
The learning curve is not short…
Requires a good understanding of the design patterns
Requires some experience in Java Swing and GUI development
Know how thread works, actions, listeners.
A key skill: Monkey See, Monkey Do

10. Links…