Domain model relationships

Hi Ranchers,

I got domain model with all bi-directional relationships. And in my assignment it is mentioned some thing like this.

"All of these objects and the relationships between them should be addressed in your design and
implementation."

Say for example (Attached diagram is not from real assignment) i have mentioned given and proposed relations.

Is this kind of changes in domain model is accepted or not.

Could you please share your comments on this.

Thanks in advance.

Is this kind of changes in domain model is accepted or not.

http://www.coderanch.com/t/601896/java-Architect-SCEA/certification/Ambiguity-Domain-model-case

Could you please share your comments on this.

It is not allowed to comment or suggest design. The purpose of certification is just you being responsible for yours own architectural decisions.
Regards.

As a general comment, make sure you aren't oversimplifying the problem with any of your changes.