Maybe b/c there haven't been any good attempts at it, and the major players (oracle) don't have incentives to build such systems. Getting OOD Right, would be a

Maybe b/c there haven't been any good attempts at it, and the major players (oracle) don't have incentives to build such systems. Getting OOD Right, would be a huge task. Why do invest on it, when you are already making lots of money on the current offering?