What are the differences between Asset Inventory and Asset Management? Is the Asset Management just more feature rich?

We have an enterprise of around 400 machines.

Also, in the Asset Management installation guide it states that the standalone version of Zen Asset Management is NOT recommended if:

You want users to be able to monitor and administer ZENworks Asset Management from more than one computer.

Does this mean that only one predetermined workstation in the IT departmentwill be able to login to the Asset Management server and administer it?

I'm not clear on how this product all fit's together.

Thank's for any insight you might be able to give.

David Mitchell