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relationship between Wall---Aperture in domain model

lambertlee Li
Ranch Hand

Joined: Dec 15, 2005
Posts: 52
I think the relationship between Wall-----Aperture should be 1----0..*.

But the domain model show the relationship is 1----1..*

If I change the relationship from 1----1..* to 1----0..*, does that means I change the domain model, will that cause my failure?

Can anybody who has passed exam give some comments? Thanks!
Ethan Zhang
Ranch Hand

Joined: Mar 19, 2008
Posts: 46
lol, if they(biz user) think they want every wall has at least one door or window, why can't you let them live with that... the bottom line is it's their product(house). Take it easy, it's just an assignment.

Something I can't explain to myself is Product -- House. I could understand Product HAS a House. But it's Bi-Directional association. That means House may also HAS a product. So why???

lambertlee Li wrote:I think the relationship between Wall-----Aperture should be 1----0..*.

But the domain model show the relationship is 1----1..*

If I change the relationship from 1----1..* to 1----0..*, does that means I change the domain model, will that cause my failure?

Can anybody who has passed exam give some comments? Thanks!


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