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Is necessary to change the business model??

 
Eduardo Rodrigues
Ranch Hand
Posts: 199
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Hi guys
For the already certified, I just want to know if you change the business model provided by sun...???
I mean, it's obvious that is necessary to add some EJB's to play the role of controllers, but my doubt is about the relationship's between the entities provided...
Maybe change the cardinality or even the relationship...???
Thank you so much!
 
Ajith Kallambella
Sheriff
Posts: 5782
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More than often your business model changes during the course of analysis and design. BOMs depict business entities at a highly conceptual level. During analysis you normally introduce additional classes, attributes, relationships etc that are necessary for you to realize the application behavior. Note that you can( and in fact you will ) refine the relationships defined in the BOM. However, you need to pay particular attention to introducing ambiguities and/or contradicting the original relationships.
Within the context of the assignment for instance, BOM does not specify CreditCard as a business object whereas it surfaces in more than one use case specification. It is your job as an analyst to identify such "hidden" business entities and introduce them into the BOM. Along the same lines, it is upto you to model a CreditCard as a separate business object, or as a bunch of attributes on the Passenger object. Similarly you must decide during your analysis whether Passenger and TravelAgent are specializations of Person object or just simple attribute specifications on a User object.
Think about it
 
John Wen
Greenhorn
Posts: 15
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I didn't change the business model provided. I know many of those passed did not change the business model provided. It can be done without changing it.

If you changed the business model, how do you know your new business model is valid without it being approved by the clients/users? Without changing it, you can also blame it to the business analyst.
 
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