We are currently using Rational Rose 2000e.   We have to transform our object model 
into a logical data model using the Rose data modeler add-in. The model has an 
abstract class with 2 �private� attributes � OID and lastUpdateTs (friendship required 
feature unspecified) . It is the intent of the object modelers to have these 2 
attributes flow down to all the derived classes and then on to the logical data model. 

My areas of concern:
1. Is is correct to model these attributes as private rather than protected or public 
in an abstract or base class?

2. Even when I tweak the class and make the attributes �protected� with friendship 
required or even �public� these are not carried over to the data model when I try to 
transform the object to data model transformation

Any input would be greatly appreciated.
Thanks,
Abby Thakur


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