Hi,

I've just put Dandelion 0.5 beta1 in my site.
http://www.mars.dti.ne.jp/~umejava/smalltalk/stClasses/dandelion/index.html

Dandelion 0.5 will includes long-awaited XMI support. You can now generate
XMI UML files by Dandelion. Let's analyze your project and see it with the
various case tools which supports XMI (MagicDraw, Argo UML, etc).

Here is the screenshot of MagicDraw UML displaying 'Kernel-Numbers'
category.
http://www.mars.dti.ne.jp/~umejava/images/MagicDrawDandelion1.jpg

Enjoy!
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[:masashi | ^umezawa]