Please don’t ask for people with 15 years of OBIEE experience – OBIEE’s 1st version was officially released on Jan 27th 2007 – http://www.oracle.com/corporate/press/2007_jan/012907-OBIEE.html UPD: actually, it was available for download throughout 2006 – and many people used it back then (like beta, except it wasn’t). Just wanted to correct myself.
However, to be honest, the grandfather of OBIEE was a product called nQuire Suite (I believe there were versions 1.0, 2.0, and 3.0) which was initially shipped in 1999. A few years later, the company was purchased by Siebel. The software was re badged as “Siebel Analytics” and became even more successful. Oracle acquired Siebel in the end of 2005, and the product remained largely unchanged (I’m pretty sure someone commented they they have seen code from pre-2000).
I know this has been discussed numerous times, I just wanted to emphasize this one more time.