Srinivasan, a Computer Science professor, advises Zhang in Fall 2017

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What can we figure out from the following picture?

 

  a.

The Computer Science offers CS-101 in the Spring

  b.

Srinivasan, a Computer Science professor, advises Zhang in Fall 2017

  c.

Zhang teaches Computer Science 101 section 1 in classroom packard-101

  d.

Zhang is a Computer Science student that takes sec1 of Introduction to Computer Science

This diagram is an Entity-Relationship (ER) diagram representing a small academic database structure. Below is a detailed explanation of each component, including entities, attributes, and relationships:

### Entities and Attributes

1. **Instructor (Oval: 10101)**
   - **Attributes:**
     - Name: Srinivasan
     - Salary: 6500
   - **Relationship:**
     - Teaches: Connects instructor to the course section (sec1).

2. **Department (Oval: comp_sci)**
   - **Attributes:**
     - Dept_name: Comp. Sci.
   - **Relationships:**
     - Int_dept: Connected to Instructor.
     - Stud_dept: Connected to Student.
     - Course_dept: Linked to Course.

3. **Student (Oval: 00128)**
   - **Attributes:**
     - Name: Zhang
     - Total Credits: 102
   - **Relationship:**
     - Takes: Connects student to the course section (sec1).

4. **Course Section (Oval: sec1)**
   - **Attributes:**
     - Sec_id: 1
     - Semester: Fall
     - Year: 2017
     - Classroom: packard-101
   - **Relationships:**
     - Sec_course: Linked to Course (CS-101).

5. **Course (Oval: CS-101)**
   - **Attributes:**
     - Title: Intro. to Computer Science
   - **Relationship:**
     - Course_dept: Linked to department (comp_sci).

### Explanation of Diagram Flow

- The instructor (Srinivasan) is associated with a specific department (Computer Science) and teaches a specific course section (sec1).
- The department (Comp. Sci.) is associated with both the instructor (Srinivasan) and the student (Zhang).
- The student (Zhang) takes the course section (sec1), which is part of the Computer Science department.
- The course titled "Intro. to Computer Science" is identified by the course code CS-101 and is associated with a specific section (sec1).
- The course section (sec1) is scheduled in the classroom "packard-101" during the Fall semester of 2017.

This ER diagram provides a clear representation of how different entities in an educational setting are related and organized.
Transcribed Image Text:This diagram is an Entity-Relationship (ER) diagram representing a small academic database structure. Below is a detailed explanation of each component, including entities, attributes, and relationships: ### Entities and Attributes 1. **Instructor (Oval: 10101)** - **Attributes:** - Name: Srinivasan - Salary: 6500 - **Relationship:** - Teaches: Connects instructor to the course section (sec1). 2. **Department (Oval: comp_sci)** - **Attributes:** - Dept_name: Comp. Sci. - **Relationships:** - Int_dept: Connected to Instructor. - Stud_dept: Connected to Student. - Course_dept: Linked to Course. 3. **Student (Oval: 00128)** - **Attributes:** - Name: Zhang - Total Credits: 102 - **Relationship:** - Takes: Connects student to the course section (sec1). 4. **Course Section (Oval: sec1)** - **Attributes:** - Sec_id: 1 - Semester: Fall - Year: 2017 - Classroom: packard-101 - **Relationships:** - Sec_course: Linked to Course (CS-101). 5. **Course (Oval: CS-101)** - **Attributes:** - Title: Intro. to Computer Science - **Relationship:** - Course_dept: Linked to department (comp_sci). ### Explanation of Diagram Flow - The instructor (Srinivasan) is associated with a specific department (Computer Science) and teaches a specific course section (sec1). - The department (Comp. Sci.) is associated with both the instructor (Srinivasan) and the student (Zhang). - The student (Zhang) takes the course section (sec1), which is part of the Computer Science department. - The course titled "Intro. to Computer Science" is identified by the course code CS-101 and is associated with a specific section (sec1). - The course section (sec1) is scheduled in the classroom "packard-101" during the Fall semester of 2017. This ER diagram provides a clear representation of how different entities in an educational setting are related and organized.
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