Enterprise Server Architecture

Hi

Can anyone tell me about WebMethods Enterprise Server Architecture? What does that statement mean - “Multiple Enterprise Server can run on a single host”? What is the significant of it? Difference between Broker Server and Broker? And also some stuffs about Queues?

Thanks and Regards
Yuvaraj

Perhaps these threads would be helpful:

http://www.wmusers.com/wmusers/messages/120/75.shtml?

http://www.wmusers.com/wmusers/messages/100/1115.shtml?