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Showing both Value Object and its corresponding Domain object in Class diagram

Sam Gehouse
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Joined: Jul 21, 2003
Posts: 281
Have the examinees shown both Value object and its corresponding domain object in the class diagram?
Pham Huy Anh
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Joined: Aug 23, 2006
Posts: 41
Hi,
I think Business Domain Object is the term that Business Analysist uses to modelize. In Java design, it should be transformed into Value Object/Transfer Object or (entity EJB). I prefer VO/TO 'cause it is more clear, and easy to understand (Object that stores data, that glues layers, components.

How do you think?

In fact, the term VO/TO is defined by Sun. I worked for IBM, they said BusinessObject, DataObject

http://java.sun.com/blueprints/corej2eepatterns/Patterns/TransferObject.html
Ricardo Ferreira
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Joined: Feb 13, 2006
Posts: 156
Sam,

When designing your class diagram, I should try to focus on object oriented analysis and design techniques (OOAD). At the analysis level, do not include any architectural patterns in the diagram. They should only define business entities and contraints.

At the design level, you can put some extra classes like TO/VO's. To be honest with you, for the exam pourposes, it do not require those patterns. Try to keep your class diagram technology neutral, regardless the business components like fa´┐Żades or business objects.

Regards,


Ricardo Ferreira,<br /> <br />Sun Certified Enterprise Architect<br />IBM Certified SOA Solution Designer<br />IBM Certified RUP v7.0 Solution Designer<br />IBM Certified Specialist for RUP v2003
 
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