OWNER (ID, FIRST_NAME, MIDDLE_NAME, LAST_NAME, COMPANY_NAME,
EMAIL_ADDRESS, PHONE_NUMBER,TYPE_OF_BUSINESS)
PROPERTY (ID, STREET_NUMBER, STREET_NAME, CITY, PROVINCE, ZIP,
TYPE, EMPLOYEE_ID, OWNER_ID)
EMPLOYEE (ID, NAME, ADDRESS, PHONE, EMAIL, GENDER, POSITION,
SALARY, MANAGER_ID, BRANCH_ID)
BRANCH (ID, ADDRESS, PHONE)
RENTOR (ID, NAME, ADDRESS, PHONE, EMAIL)
RENTAL (ID, PROPERTY_ID, RENTER_ID, DATE_SIGNED, START_DATE,
END_DATE)
VIEWING (ID, PROPERTY_ID, RENTOR_ID, DATE)
ADVERTISING (ID, NEWSPAPER_NAME, PROPERTY_ID, DATE_OF_AD)
For the above use case for each entity identify their data types
and if the fields are required (NOT NULL). Create the ERD document...