How Supplier can manage his cataloge from web

Hi all,

I'm looking for information about SRM scenario enabling suppiers to maintain his catalog.

I need to enable:

- suppliers to upload his cataloge from web into MDM catalog

- purchaser to see catalog uploaded from vendor and collaborate with him on-line to change and then finally upload it on MDM

- suppliers to retrieve his cataloges and change it.

I know that there is the Business Package for Supplier Collaboration but I cannot find more information about it.

Have you some documentation about it and some ideas about to cover the process above described?

Thank you so much, in advance.

BR

Francesco