SQL Server 2008 達人に聞く- SharePoint Serverの対応について

Hi!
First Happy New Year!
I would like to ask some questions about Microsoft BI.
I am from Bulgaria - Sofia university and I chose to write diplom work for my master degree on theme "Microsoft Business Intelligences technologies research".
My diplom work instructor gave me the following questions as a base points for my diplom work:
- ROLAP, MOLAP и HOLAP support in Microsoft BI
- data compression in multidimensional data model
- maximum possible number of dimensions
- how Microsoft BI server can process large dimensions containing 700 000-800 000 elements in a dimension
- are there specialized solutions to problems as segmentation of calculated changes of dimension hierarchies for a given period in the time
- what methods are there for working with non-additive facts(for example  non-additive  facts caused by "many to many" relations)
My main problems are with the last 2 questions - I have searched so hard, but I have not found no info about this.
I would be very glad if you can help me or tell me where to find info about this.
Every internet address or info you can give me will be very helpful for me.
Have a nice day!