Grouping in BI Content
As we know there are the following options in Grouping while installing a Business Content --
1) Only necessary Objects
2) In Data Flow Before
3) In Data Flow Afterwards
4) In Data Flow Before and Afterwards
Can anyone Please give me a Very Clear idea (possibly with good examples) about all the above options. I mean when and why should you select each of them ??
I will certainly assign points as a way to Thank you.