Development History

- Sept. 1998

The theory of concept browsing is developed in research papers.

Sept. 1998 - Jan. 1999

Initial design discussions around concept browser implementations.

Jan. 1999 - June 1999

Conzilla 0.2 was developed, which forms the Master degree project Conzilla - Towards a Concept Browser. Features:

    * Simple surfing
    * Only run as applet (=> frequent crashes due to buggy Netscape Java support)
    * Map-sets for context switching
    * Aspect-sets for sorting of content into aspects and presentations.
    * Concepts included detailed maps, content and all associations, as well as a pre-sorted set of content.

Editing was done using a text-editor to edit XML files.

June 1999 - Aug. 1999

Conzilla 0.4 was developed, which was a complete rewrite of 0.2, having learned many lessons. Features:

    * Graphical editor (woohoo!)
    * Introduction of Neurons and NeuronTypes
    * Standalone application (no applet support)
    * Resolver tables were introduced.
    * Error handling
    * Tools

Aug. 1999 - June 2000

Many updates to Conzilla 0.4, including:

    * Much better editing support:
          o Associations follows boxes
          o Handles
          o Component editor
    * Libraries
          o Clipboard
          o Templates
    * Context menus

June 2000 - Dec. 2000

Conzilla 1.0 was prepared. Major updates include:

    * Documentation in the form of The Conzilla Design - The Complete Reference.
    * Complete IMS meta-data support.
    * Language manager.
    * Resolver table editor.
    * Many architectural clean-ups.
    * Installer
    * Java Webstart support
    * Editor:
          o Grid
          o Handles rewrite
    * Filter implementation
    * Detailed map popups
    * Print support
    * Much improved error handling
    * Zoom support

Dec. 2000 - Oct. 2001

Many bugfixes and additions to Conzilla 1.0, including:

    * Metadata popups
    * Highlights (including dependencies)
    * Much improved editor, supporting selections etc.
    * Filter updates
    * Internationalization
    * New toolbar
    * Color customization

Oct. 2001 - Jan. 2002

Conzilla 1.1 was prepared. Updates include

    * Full modularization, and support for plug-ins.
    * Support different views when browsing several maps.
    * Protégé plug-in proof-of-concept support
    * Conzilla works as applet again.
    * Major tool rewrite.
    * Major update of editing support:
          o Support curved lines
          o Support drag-and-drop creation of relations
    * First try at an RDF backend is being developed.
    * Internationalization and localization.