It depends on the classes and whether they are persistent. If you have two classes
that are related on the class model and both are marked persistent, then chances are
you will have two related tables with the same cardinality in the database. This is
not an always or hard and fast rule. Databases are designed with normalization of
attributes. Classes are designed with assignment of attributes and behavior. Your
best bet is to use a data analyst and a process analyst to develop both data and
process models concurrently. If you focus on one model first, chances are the other
model will be compromised in some fashion.
Regards,
Walter
WallStreet Consulting Services, Inc.
[EMAIL PROTECTED]
"Managing Your Data Investment"
>>> "Compadre" <[EMAIL PROTECTED]> 06/20/01 06:30AM >>>
hi ALL,
The cardinality between classes of OO model must be equal as cardinality of ER
or are they totally diferent?
Thanks.
************************************************************************
* Rose Forum is a public venue for ideas and discussions.
* For technical support, visit http://www.rational.com/support
*
* Admin.Subscription Requests: [EMAIL PROTECTED]
* Archive of messages:
http://www.rational.com/products/rose/usergroups/rose_forum.jtmpl
* Other Requests: [EMAIL PROTECTED]
*
* To unsubscribe from the list, please send email
*
* To: [EMAIL PROTECTED]
* Subject:<BLANK>
* Body: unsubscribe rose_forum
*
*************************************************************************
