Scaled. That means you an draw in the big and scale down. If you do that with GIMP or other raster tools you can get bad cases of the jaggies
Exports. To bitmap forms GIF and JPG and PNG which are relevant here.
Imports: Can import a bitmap and make a reasonable attempt to convert it to SVG and has clean up tools.
Scalable+vector gets around many of the klutzy things use non-artists run into while offering power for the real artists.
-- AntonAylward - 17 Oct 2005