Yes you can automate ORMB through QTP, it is a web based application. Also you can use HP API test to run Business logic based tests which otherwise is also called as Headless layer testing which calls to Business components. Architecture, Technical details can be found in http://www.oracle.com/us/industries/...-wp-454234.pdf. Hope this helps.
I don't build Software but I make them work better, Testing is a Passion