shell script needed for testing packages

Hi All I would like to know if all the required dependency packages are installed on my system. By way of example: if I would like to know if the required packages for Evolution are on my system. Typically I could do an "rpm -qR evolution" which would list all the required files. Then I could one by one do "rpm -q --whatprovides . . . " and then rpm -q the result. This is long and tedious. Is there a simple equivalent rpm option or could some perl guru or shell script put together something that does the equivalent? Would be very grateful. TIA Eddie