| Data and Object Models |
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| Ÿ | Rich, flexible
mapping capabilities provide |
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| data and object
models a degree of |
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| independence |
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| Ÿ | Otherwise,
business object model will force |
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| changes to the
data schema or vice-versa |
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| Ÿ | Often, J2EE
component models are nothing |
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| more than mirror
images of data model or vice |
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| versa – NOT
desirable |
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