Question

The following are the main entity types of the academic institution database. For each entity type, we provide some of the corresponding attributes. Use this information in order to: (a) Build an Enhanced E-R diagram; (b) Transform the Enhanced E-R diagram to a relational database. Identify the primary key(s) and the foreign key(s) for each relation. Draw the relational integrality constraints; (c) For each of the relations created, indicate its normal form. If the relation is not in the 3NF, decompose it into 3NF relations.

Instructor: The main attributes are identification number, name, address, name of the department and college s/he is working for, area of specialty, etc.

Course: The main attributes are course number, name, prerequisites, number of credit hours, group of courses it belongs to, etc.

Student: The main attributes are identification number, name, address, birthday, gender, department and college s/he is in, etc.

Classroom: The main attributes are room number, name of the building, capacity, and description of any special feature (for example, media equipment, computers, video, etc.).

Period: The main attributes are period number, start time, and end time.

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6. Assignment: This is an associative entity. Its attributes are number of students taking a particular course taught by a particular professor during a particular time period.

Note that the relation between students and courses is a many-to-many relationship. Students get a grade for each course they take.

Answer 1

Now showing with databases

gpa' firstnam other_nam STUDENT name other nam surnamm name id firstname Salary id surnam address EMPLOYEE Calculated Sala grade qualificati ISA Register day time section locatio FACULTY STAFF LECTURE SECTIO ISA COURSE OFFERIN lectures 0 LAB SECTION manages works for 0 0 year COURSE id DEPARTMEN descriptio level SEMESTER Semest name title creately course credits emester n ar

***Please mention if u have any doubts,thank you..

Teachers ld: string Name: string -PhoneNo: int Address: string +PrepareTestPaper) +MarkAttendance) +CheckPaper) +PrepareReportCards) +DeclaireResult() Admin ld: string Name: string -Password: string +Login) +LogOut() +AddNewTeachers) +ModifyTeachers() +AddNewStudents() +Modify Students(0) +AddNewSubject) +ModifySubject() +AddNewClass() +ModifyClass) +AddNewDivision) + ModifyDivision) Test Paper ID: string Name: string Duration: float ClassID: string Student ld: string Name: string -PhoneNo: int Address: string +FillAdmissionForm() +GetEnrolled() +WriteExam() Test Paper Class Division ID: string Name: string -ClassID: string +DisplaySubjects( D: string Name: string -Division: string +DisplayClass() ID: string Name: string +DisplayDivisions(