The MAA methodology was designed by a dedicated team at Oracle with extensive input from the user community. It expounds the use of:
Methods applicable to any-sized organization
Inexpensive commodity hardware
Multiple redundant components
The MAA recommendations include the following Oracle Products: Database, Application Server, Applications, and Grid Control . Be aware that there are additional licensed options for some features, such as the Advanced Security Option, that are part of the MAA recommendations.
Note
Details about the different editions of Oracle and the licensed options can be found at: http://download.oracle.com/docs/cd/E11882_01/license.112/e10594/editions.htm#CJACGHEB.
It is safe to assume that these recommendations from the MAA website will work in a general sense for most installations, but not without testing and verification. You will have to read each white paper published on the MAA website for your Oracle Database version to find...