>>If you've done your analysis correctly, this will never happen because you'll learn how any current systems work. If one system does all it's data access via biz objects, you'd better find out what they do.
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>I am not sure I understand you. Did you read all the thread ?

You should not have one application written to enforce RI in the database and another using biz objects. Do it one way. IMO, enforcing at the data is the best way.


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>I understand that for Nancy Folsom the Referentiel integrity tier is the business tiers.

I think what Nancy is saying is that RI should be enforced by the biz rules. I agree. However, where that is implemented is what we are debating here. There are valid reasons for doing this with biz objects or letting the data store do it. Either way, it is biz rules that determine how it is done.

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>I simply try to demonstrate it is not .