Set-up scenario

Hi All,

I hope you can help me to get my head around this.

I have a site, on which Buddy Press is installed. I'm not looking to build a social network site - all I want to do is to have certain groups (which only I as administrator can set-up) and then to have a forum area which is specific to each group - and only accessible only to those people who we as administrators give access to.

I'm not sure how the access could be given? Via a login code, or URL? so perhaps you could advise me of that also.

I know that the membershp plugin exists, but am not sure whether this is the right way to go?

So could anyone advise me the steps I need to do to make this scenario possible?

Many thanks