Difference between Commerce Portal and User Portal

Can any one please help me in understanding the difference between Commerce Portal and User Portal. Thanx, Vijay

Commerce Portal is internet commerce software (commerce) User Portal is a portal for your own web users for entering orders, looking up customers while not connected to Navision (users) The only really similarity between the two products is that they use the web as their basis.

User Portals are also defined as an Intranet solution not an Internet solution. The employee’s need to be connected to the network somehow. Terminal server and VPN can allow remote users to access the User Portal interface. Django