Thanks for the info. >As for data modeling, I found that inheritance isn't such a useful tool in practice. True. It can lock you into a particular style and h

Thanks for the info. >As for data modeling, I found that inheritance isn't such a useful tool in practice. True. It can lock you into a particular style and hierarchy. Plus, inheritance just to inherit the methods of the superclass seems like overkill or sometimes might be a wrong approach. Personally I think composition can often be more flexible than inheritance.