Reference no: EM132438088

Database Analysis and Design with ER diagram

After the requirement collection and analysis phase the software project of a database application about a company is described as follows:

1. The company is organized into departments. Each department has an dept name, an unique number, and a particular employee who manages the department. We keep track of the start date when the employee began managing the dept. A dept may have multiple locations in different city.
2. A dept controls a number of projects, each of which has a project name, unique project number, and single location.
3. Each employee has name(FN, LN, MN), SSN, address, salary, sex, and DOB. An employee is assigned to one dept but may work on several projects, which are not necessary controlled by the same dept. We keep track of the number of hours per week that an employee works for each project. We also keep track of the direct supervisor of each employee.
4. We want to keep track of the dependents of each employee for insurance purpose. Each dependent has first name, sex, DOB, and relationship to the employee.

Draw the E-R diagram either by VISIO or DIA