How to convert Bex Web Application as iviews

Hi All,

Can someone please send me any documents, blogs, links which describe how to convert BEx Web Application as Iviews and Integrate into Portal? I have never done this before. If anyone has a document which describes this with step by step instruction along with screenshots, I would really appreciate that. I am on BW 3.5 and SP15.

Thanks in advance. Points will be awarded.