Dear Sumeet,
I haven't discussed about RE and RE-Fx, rather I am mentioning the differences in the business process of RE-FX and that of SD.
I truly agree with you that RE and RE-Fx are different in processes with a little similarity.
Whatever I have mentioned in my above post is with respect to RE-Fx only as RE ( Classic Real Estate ) is outdated now.
Regards,
Siddharth Khandelwal