oracle support in opmanger or application manager

dear ladies and gentlemen,

i am looking for information about the support of oracle databases in opmanager. i have to mention that i'm a student from austria and in one of my current projects i have to look for a monitoring solution for a certain company. out of a couple of possible tools they chose opmanager which they really want to have within their company. the problem is now, that they want to know if there is a support for oracle and if yes, to which extent. so i would be really happy if you could provide me as much information as possible about the integration of an oracle monitor in opmanager and what exactly can be monitored of the oracle database.

here

http://manageengine.adventnet.com/products/applications_manager/oracle-server-monitoring.html

i read that "application manager" supports such a oracle monitoring features. as i don't know if this is a separate tool which has to be installed in addition to opmanager i wanted to ask if there is any possibility to have this oracle integration in opmanager as well. or is app manager even more powerful than opmanager so that i should recommend application manager to the company?

thanks for your help in advance!

markus