http://www.eaconsult.com/2011/10/10/the-customer-comes-second%E2%80%A6-oracle%E2%80%99s-engineered-for-investors-software-stack/
"Four (or five, depending on how you count it) main product lines, each
with its own code base. And literally dozens of other products, acquired
with the goal of improving shareholder value, most of which also came
with their own proprietary software or data models. Hundreds of business
processes, many overlapping and redundant from one product to the next.
And a big, hairy-chested middleware “suite” – Fusion Middleware – that
is itself a conglomeration of technologies – a little Java here, some
BEA and BPEL there, some MDM, some analytics , some DBMS technology, the
more the merrier, all jammed into a one-size-fits-no-one morass of
integration options. To simplify things, they also have an integration
system called AIA that is used infrequently for the very reason that
it’s an expensive, complex, technically challenging, and hard to
cost-justify Tower of Babel erected to a false deity, the Oracle
integrated software stack."