Draw the entity-relationship diagram for a companys divisions, departments, employees, and the dependents of employees where:

a) Each division is made up of departments; each department belongs to one division.

(b) Each department is assigned several employees and each employee works for one department.

(c) Each of the employees may or may not have one or more dependents and each dependent belongs to one employee.

(d) Each employee has a first name, last name, date of hire, and a company assigned ID.

(e) Each dependent has a name and date of birth/

(f) Each Department has a name and company designated number.

(g) Each division has a name and an abbreviation (such as PR for production).

Underline the primary keys in your E/R diagram and indicate any many-one or one-one relationships by using the appropriate arrows. Also note that the dependents entity set is a weak entity set. (Think about this it should make sense!). Write the schemas for the entity-relationship diagram of the Problem .