Atabase Logic and Management questions Module 2

Please answer the 2 Discusion questions seperately on their own page with 250 words a piece with 2 references a piece, all in APA 6edition format

Module 2 DQ 1
What are the benefits or disadvantages of ER diagrams? Why bother with logical design and not just create tables and columns (physical design) directly?

Module 2 DQ 2
How does understanding the logic of a database assist clinical resources? How does being involved with workflow development assist IT resources?