Business Intelligence Concepts

[SW2007]

Hello all Cognoiser...
May i ask your experiences or knowledges about BI Concepts?
What is the data flow from the source until reportnet?
Because when i try to open report (which created with ReportNet), it is take long time. it's seem there are something in my backend.
So...i just want to know about your experiences or knowledges about BI Concepts, example Backend design, Data Flow, etc.

Thank you for your sharing...

[Darek]

You have to be more specific because this just opens another Pandora's Box.