Checkpoint $10\mathrm{.}2$

How are the mapping rules for generalizations$/$specializations different from the mapping rules for weak entities?

Would it be wise to map Figure $10\mathrm{.}3$ using mapping rule $17?$ Why or why not?

Which mapping rules are good to use if there are too many attributes on the subclasses?

Which mapping rule or rules will not work well for overlapping subclasses?

When would you create an overlapping relationship?

When would you create a disjoint relationship?

Does mapping rule $15$ create relations in $3$NF$?$ Discuss.

Does mapping rule $16$ create relations in $3$NF$?$ Discuss.