The ORM Foundation

I have a doubt about the way the EntityType and FacType instances are modeled in the NORMA ORMMetamodel. I know the related file is quite old, so I’m wondering whether someone might comment on the correctness of the following uniqueness constraints: One FactTypeInstance has many FactTypeRolInstance AND one FactTypeRoleInstance has one ...

Hi all, Here another possible solution to the exercise. In my opinion this solves previous solutions mistakes: Ken’s solution – does not consider the order of givennamesAndy’s solution – does not consider that for having third name it’s required to have a second name.     According to Big Brown Book (Halpin’s ...