Create a crows foot erd using a specialization hierarchy if appropriate. Granite sales company keeps information on its employees and the departments in which they work. For each department, the department name, internal mailbox server, and office phone extension are kept. A department can have many assigned employees, and each employee is assigned to only one department. Employees can be salaried, hourly, or work on contract. All employees are assigned an employee number, which is kept along with the employee's name and address. For hourly employees, hourly wages and target weekly work hours are stored; for example , the company may target 40 hours/ wekk for some employees, 32 for others, and 20 for others. Some salaried employees are salespeople who can earn comission percentage on sales and commission percentage on profit are stored in the system. For example, John is a salesperson with a base salary of $50,000 per year plus a 2 percent comission on the sales price for all the sales he makes, plus another 5 percent off the profit on each of those sales. For contract employees, the beginning date and end date of their contracts are stored along with the billing rate for their hours.

Check the explanation

Explanation:

From the below attached image Crow Foot Notation, the relationship between Super class and Sub class is shown clearly, i.e

Employee is super class, and the different types of employees are represented by specialization of three types, there are Salary, Hourly and Contract based. Again the Salary based employee is super class of Sales Employee, representing partially participation.

From the below attached image notation, "d" represents distinct i.e distinct employees of type Salary, Hourly and contract.

And "O" represents, Overlapped, means same object is aggregating two specific outcomes which are overlapped.

They are Salary based and Sale wages based employee.

steering wheels are always situated on the left side of the car.

always drive on the right side of the road.

white lines separate lanes of traffic traveling the same direction.

hashed or broken lines means you may change lanes when it is safe.

solid white lines mean stay in your lane.

yellow lines separate traffic moving in opposing directions.

hashed or broken yellow lines mean you can carefully pass, paying attention to oncoming traffic.

never cross a solid yellow line (or double yellow line).

when turning left at an intersection, pass in front of any cars that are turning left from the opposing direction (do not try to pass behind them).

use the left lane to pass other cars traveling your direction.

do not pass in the right lane unless absolutely necessary.

if you are driving in the far left hand lane and someone would like to pass you, move over to the right lane when it is safe to do so and allow them to pass.

you must always yield to pedestrians.

come to a complete stop whenever you see pedestrians trying to cross the street.

never pass a school bus if it has flashing red lights. wait until the lights have stopped.

be aware of bicyclists. often they share the road with cars and are supposed to also follow general traffic laws.

be particularly careful about driving in cities with bike lanes -- always check before turning that a bike is not coming.

it is mandatory to pull over or stop at an intersection to allow an emergency vehicle to pass you if you see one traveling with lights flashing and/or a siren running.

do not overuse your car horn. horns are used almost exclusively for emergency situations or for when you feel unsafe.

explanation: