CAN ANYONE DIRECT ME HOW TO EXTRACT A BUSINESS RULE AND RELATIONSHIP FROM THIS PARAGRAPH.?
*I KNOW ITS MANY TO MANY RELATIONSHIP.
BUT I STILL HAVE PROBLEM TO COMPLETELY BREAK THE RELATIONSHIP DOWN TO ONE TO MANY.
PARAGRAPH:
Students will also be required to sit for many tests. However, some students are known to miss scheduled tests. Each test scheduled will have many students attending it with a test being missed by some students. The test information is recorded with its subject title noted, including date (eg. 12/2/14, which is the 12th of February, 2014) and time (eg. 10-11am).
yes dodo
To extract the business rule and relationship from the given paragraph, you can follow these steps:
1. Identify the entities: In this paragraph, the entities mentioned are "Students" and "Tests".
2. Determine the relationship type: The paragraph mentions that each test scheduled will have many students attending it, but some students may miss the test. This indicates a many-to-many relationship between students and tests. However, you want to break it down to a one-to-many relationship.
3. Analyze the paragraph: The paragraph provides additional information about the tests, including the subject title, date, and time. These details are relevant for understanding the business rule and refining the relationship.
4. Extract the business rule: From the provided information, we can extract the following business rule: "A student can attend multiple tests, but a test can be attended by multiple students. Additionally, some students may miss scheduled tests".
5. Refine the relationship: Since you want to break down the many-to-many relationship to a one-to-many relationship, you can introduce an intermediate entity. In this case, you could introduce an entity called "Test Participation" or "Attendance" to represent the relationship between students and tests. This new entity would store the information of each student's participation in a specific test, including whether they attended or missed it.
So, the refined relationship would be:
- Students have a one-to-many relationship with Test Participation/Attendance.
- Test Participation/Attendance has a many-to-one relationship with Tests.
Remember, the specific implementation and representation may vary depending on the context and requirements of your business or project.