Overhead?
 

I went to that site of Tools for ... Filmmakers or something, and they had storyboards pictures, one of them is this one:

http://www.dependentfilms.net/download/overhead.gif

What does that Overhead mean?

Thanks,

Overhead schematic of your lights or set up
 

I believe the design you have linked can be used like this.

You draw your composition on the right most square, then on the left: smaller square you can draft an overhead schematic of your...

light set-up
blocking
camera placement
etc.

This sort of plot is also well utilized in the very powerful frameforge 3d software.

All the Best

Dean

Thanks, that makes sense.
Should come in handy.