jrockfl - 11:19 pm on Apr 11, 2013 (gmt 0)
It really depends, I don't think the "big guys" follow a set standard and I'm sure they will all do it differently.
They could have multiple web and desktop applications that due certain tasks. I'm sure the big guys have a swat team of developers.
I just bought a frig at Home Depot last week and the salesperson in the appliance section was using a web based intranet application to create the order, schedule, the delivery.