Conceptual Modeling Activity

$($a$)$ The university keeps track of each student's name, student number, social security number,

current address and phone, permanent address and phone, birth date, sex, class $($freshman$,$

sophomore, $...,$ graduate$),$ major department, minor department $($if any$),$ and degree program

$($B$.$A$.,$ B$.$S$.,...,$ Ph$.$D$.).$ Some user applications need to refer to the city, state, and zip of the

student's permanent address, and to the student's last name. Both social security number and

student number have unique values for each student.

$($b$)$ Each department is described by a name, department code, office number, office phone, and

college. Both name and code have unique values for each department.

$($c$)$ Each course has a course name, description, course number, number of semester hours,

level, and offering department. The value of course number is unique for each course.

$($d$)$ Each section has an instructor, semester, year, course, and section number. The section

number distinguishes different sections of the same course that are taught during the same

semester$/$year; its values are $1,2,3,$dots, up to the number of sections taught during each

semester.

$($e$)$ A grade report has a student, section, letter grade, and numeric grade $(0,1,2,3,4$ for F$,$ D$,$ C$,$

$B,A,$ respectively$).$

Design an ER schema for this application, and draw an ER diagram for that schema.

Specify key attributes of each entity type and structural constraints on each relationship type.

Note any unspecified requirements, and make appropriate assumptions to make the

specification complete.

$($Not with a table but with oval, rectangle, diamond, $...$ shapes $-$ Entity$-$Relationship Diagram $($ER Diagram$)-)$