Question

Consider the following description

To take any course, a student must go through the following process. When the course such as CS140
is offered, students need to enroll in them. Minimum number of students required is 10 to start the course. Each course has at least one and at most three teachers.
Firstly, write down all the entity classes involved in this scenario
and later find the multiplicity between individual entities where there is an association. You don't have to draw the diagram. E.g entity a1 : 0 entity b1 indicates multiplicity from Entity B to A similar to the way its represented on diagram as placed on extreme end of the association.

Answer 1

The scenario involves three entity classes: Student, Course, and Teacher. The multiplicity from Course to Student is 10..*, from Student to Course it's 0..*, from Course to Teacher it's 1..3, and from Teacher to Course it's 0..*.

Step-by-step explanation:

To answer the student's question, we need to identify the entity classes involved in the scenario and determine the multiplicity of the relationships between them. The entity classes in the described scenario are Student, Course, and Teacher.

The multiplicities between these entities are as follows:

• Course to Student: A course requires a minimum of 10 students to start; therefore, the multiplicity from Course to Student is 10..*
• Student to Course: A student can enroll in any number of courses, so the multiplicity from Student to Course is 0..*.
• Teacher to Course: Each course has at least one and at most three teachers, which gives us a multiplicity of 1..3 from Course to Teacher.
• Course to Teacher: A teacher can teach any number of courses, so the multiplicity from Teacher to Course is 0..*.

The association between Student and Course means that for a course to be offered, there must be at least 10 students enrolled. The Teacher entity's involvement indicates that each course must have between one and three teachers assigned to it.