Posted by kkaefer on July 5, 2006 at 5:56pm
In the last couple of days, I got familiar with jQuery and in particular with the new functionality in 1.0 alpha. I wrote the first portions of code for the tree. They can be found at http://cvs.drupal.org/viewcvs/drupal/contributions/sandbox/timcn/soc/wee.... (You need to download the lates alpha of jQuery manually as it's still in MIT licence).
For the next week, I plan to add drag and drop capabilities to the tree and to test it for cross-browser functionality.

Comments
brushing up on usability
Goody! Can't wait to get my hands dirty.
Konstantin, my role is mostly to test and comment based on commonly accepted usability principles. Just so we are working on the same page, I'll post some reference points (these may not necessarily be true for all occasions but we can use them as references). I'm sure you know these, so just think of them as resources to help us brush up on usability.
The wikipedia entry on usability is always a good start: http://www.useit.com/alertbox/20030825.html
Jakob Nielsen's starting point for usability: http://www.useit.com/alertbox/20030825.html
"The Power of Drupal Categories"
http://digitalsolutions.ph/couchkamotereviews/power_drupal_categories
User Experience Design
A Podcast for Mac Switchers