What is the minimal data rule in conceptual design? Why is it important?

Discuss the distinction between bop down and bottom$-$up approaches in database design.

What are busincss rules? Why are ihey impos tant to a database designet?

What is the datu dictionarys function in database design?

What steps are required in the development of an ER diagram? $($Hit See Table $9\mathrm{.}3.)$