If you’ve been working with first GA version of OBIEE 11g you’ll have noticed there are many references to the sampleapp.rpd. But you will have found the links don’t take you to it and it is not listed on the OBIEE 188.8.131.52.0 download page. There have been several posts on the Oracle forums looking for this. The RPD that is installed with the OBI download is actually the SampleAppLite RPD.
You can find SampleApp RPD at http://www.oracle.com/technetwork/middleware/bi-foundation/obiee-samples-167534.html.