I think AutoCAD has an Excel like quality within a lot of industries. It is ridiculously versatile, but often used in a very primitive and risky way. And ofte

I think AutoCAD has an Excel like quality within a lot of industries. It is ridiculously versatile, but often used in a very primitive and risky way. And often you end up with a "drawing" that lacks any of the properties of high quality data. It is used like a really advanced pencil with a thousand nebulous features. That is not a good basis for an open source tool, it is just not well defined enough.