Lab 1: Creating A Database Design Due Week 3 And Worth 75 Po
Lab 1 Creating A Database Designdue Week 3 And Worth 75 Pointsthis As
This assignment contains two (2) Sections: Database Design and Design Summary. You must submit both sections as separate files in order to complete this assignment. If you are using Visio, see “ Appendix A: Designing Databases with Visio Professional 2010: A Tutorial †to help you complete Section 1: Visio Database Design. ( Note: This tutorial focuses on the use of Microsoft Visio. Open source applications are not covered in Appendix A; however, using open source applications or even pen and paper within labs is permitted.) Use the scenario from Assignment 1: Business Rules and Data Models to complete the lab: Business Rules and Data Models to complete the lab:Suppose a local college has tasked you to develop a database that will keep track of students and the courses that they have taken. In addition to tracking the students and courses, the client wants the database to keep track of the instructors teaching each of the courses.
Section 1 : Database Design Diagram
(Using Microsoft Visio is optional; you may also use any other application you know or even draw the diagram with pen and paper and take a picture of it for submission.)
1. Create a database diagram with the entities and attributes that the scenario identified (i.e., a college tracking students, courses, and instructors).
2. Submit your diagram.
Section 2 : Design Summary
(Microsoft Word or equivalent)
3. Write a one (1) page paper in which you: 1. a. Discuss the degree to which you believe your diagram reflects the database design.
Section 2 of your assignment must follow these formatting requirements:
- Submit the design summary as a Microsoft Word file.
- Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.
- Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page is not included in the required assignment page length.
Paper For Above instruction
The development of a comprehensive and accurate database design is crucial for effectively managing information in a college setting. In this specific scenario, the database must capture information about students, courses, and instructors, and the relationships among them. The diagram that I created aims to accurately reflect these entities and their attributes, ensuring that it supports the college's operational needs while maintaining data integrity and flexibility for future extensions.
The primary entities identified in the diagram include Student, Course, and Instructor. The Student entity includes attributes such as Student_ID, First_Name, Last_Name, Date_of_Birth, and Major. The Course entity encompasses attributes like Course_ID, Course_Name, Credits, and Department. The Instructor entity features Instructor_ID, First_Name, Last_Name, Office_Number, and Department. These entities are interconnected through relationships that represent the enrollment of students in courses and the assignment of instructors to teach courses.
Specifically, the Student and Course entities are linked through an Enrollment relationship, which also captures additional details such as Enrollment_Date and Grade. This many-to-many relationship reflects the real-world scenario where students can enroll in multiple courses, and each course can have many students. To implement this, an associative entity, Enrollment, is used to break down the many-to-many relationship into two one-to-many relationships, which is a standard practice in relational database design.
Similarly, the Course and Instructor entities are connected through a Teaches relationship, indicating which instructors are responsible for teaching each course. This relationship is modeled as one-to-many if each course has a single instructor or many-to-many if multiple instructors can teach a course. The specific design chosen depends on the college's policy; for this model, a many-to-many relationship was depicted, with an associative entity called TeachingAssignment that captures the instructor's role, term, and semester.
Overall, I believe my diagram effectively reflects the necessary components of the database design. It captures essential entities and attributes, illustrating their relationships comprehensively. The design is normalized to reduce redundancy and ensure data consistency. Furthermore, the use of associative entities for complex relationships aligns with best practices and enhances the database's flexibility and scalability.
In conclusion, the diagram provides a clear structure for capturing the relevant data about students, courses, and instructors, supporting the college's operational and reporting requirements. Future updates to the database can be accommodated by adding new attributes or relationships without disrupting the existing design, demonstrating its robustness and adaptability.