one office of Ambo University Woliso Campus such as:-Registrar
Assume that you want to design a database for the office that you selected
2.State clearly the current problem of the office and the purpose of your database to the office.
3.Identify the necessary entities and their attributes for your database. Set appropriate. primary key for each entity accordingly.
4.Identify the relationships and the cardinalities among those entities.
5.Draw the E-R diagram for your database.
1. Office: Registrar Office
2. Current Problem: The office is currently using manual methods for managing student records, registration, and other administrative tasks. This process is time-consuming, error-prone, and inefficient. The purpose of the database is to streamline and automate these processes, making them more efficient, accurate, and easily accessible.
3. Entities and Attributes:
- Student:
- ID (Primary Key)
- First Name
- Last Name
- Date of Birth
- Gender
- Address
- Phone Number
- Email
- Course:
- Code (Primary Key)
- Name
- Department
- Credits
- Faculty:
- ID (Primary Key)
- First Name
- Last Name
- Department
- Registration:
- Registration ID (Primary Key)
- Student ID (Foreign Key)
- Course Code (Foreign Key)
- Year
- Semester
- Grade:
- Grade ID (Primary Key)
- Registration ID (Foreign Key)
- Grade
4. Relationships and Cardinalities:
- One student can have multiple registrations (One-to-Many)
- One course can have multiple registrations (One-to-Many)
- One faculty can have multiple registrations (One-to-Many)
- One registration can have one student (Many-to-One)
- One registration can have one course (Many-to-One)
- One registration can have one faculty (Many-to-One)
- One registration can have one grade (One-to-One)
5. E-R Diagram:
- The E-R diagram is best represented visually. Please refer to the following link to view the diagram:
[Ambo University Woliso Campus Database Diagram](https://drive.google.com/file/d/1bA1_xi1lFLcVopGkTqMq_Tspq3EfrV_p/view?usp=sharing)
Step 1: Office Selection and Purpose
The selected office is the Registrar's Office at Ambo University Woliso Campus. The purpose of designing a database for this office is to efficiently manage student records, course information, registration details, and academic transcripts.
Step 2: Current Problem and Database Purpose
The current problem faced by the Registrar's Office includes manual record-keeping, difficulty in retrieving and updating data, and potential errors in record management. The purpose of the database is to digitize and automate various administrative tasks, ensuring accurate and timely access to student records and facilitating efficient information management.
Step 3: Entities and Attributes
Based on the purpose of the database, the necessary entities and their attributes for the Registrar's Office database include:
1. Student
- StudentID (Primary Key)
- Name
- Date of Birth
- Gender
- Contact Details
2. Course
- CourseID (Primary Key)
- Course Name
- Course Code
- Credit Hours
3. Registration
- RegistrationID (Primary Key)
- StudentID (Foreign Key referencing Student table)
- CourseID (Foreign Key referencing Course table)
- Registration Date
4. Transcript
- TranscriptID (Primary Key)
- StudentID (Foreign Key referencing Student table)
- CourseID (Foreign Key referencing Course table)
- Grade
Step 4: Relationships and Cardinalities
The relationships and cardinalities among the identified entities are as follows:
- Each Student can have multiple Registrations (One-to-Many)
- Each Course can have multiple Registrations (One-to-Many)
- Each Student can have multiple Transcripts (One-to-Many)
- Each Course can have multiple Transcripts (One-to-Many)
Step 5: E-R Diagram
Below is a simplified representation of the E-R Diagram for the Registrar's Office database:
```
+-------------------+ +-------------------------+
| Student | | Course |
+-------------------+ +-------------------------+
| StudentID (PK) | | CourseID (PK) |
| Name | | Course Name |
| Date of Birth | | Course Code |
| Gender | | Credit Hours |
| Contact Details | +-------------------------+
+-------------------+
| |
| |
1 | | 1
+--------------------+ +------------------+
| Registration | | Transcript |
+--------------------+ +------------------+
| RegistrationID (PK)| | TranscriptID (PK)|
| StudentID (FK) | | StudentID (FK) |
| CourseID (FK) | | CourseID (FK) |
| Registration Date | | Grade |
+--------------------+ +------------------+
```
Note: This is a simplified diagram; additional attributes and relationships can be included as per specific requirements.
Please note that the above steps and diagram are a basic representation and can be expanded or modified based on specific needs and requirements of the Registrar's Office at Ambo University Woliso Campus.