Requirements

The system shall allow students to request enrollment in a course

The system shall allow the registrar$$s office to input courses but will only create new records if the course doesn$$t already exist in the system

The system shall allow the registrar$$s office to input new student records but will only create new records if the student doesn$$t already exist in the system

The system shall send reports to the registrar$$s office on course enrollment data

The system shall validate student enrollment requests against current course enrollments to not allow duplicate enrollment in the same course

The system shall enroll students in courses if they are not already enrolled

The system shall return a success or error message to students based on course enrollment transaction status

The system shall store data about all active students $($e$.$g$.,$ their unique student id$,$ first name, last name, and email address$)$

The system shall store data about all courses $($e$.$g$.,$ the unique class id$,$ class subject, class number, and class name$)$

The system shall store student enrollment data $($e$.$g$.,$ student id$,$ class id$,$ and enrollment date$)$

Assumptions:

All students are active and eligible for enrollment

Students are not required to enroll in any course, and courses are not required to have any students

Students can only register for a course once

There are no prerequisites for any course

There is no enrollment capacity for each course

Using the requirements above, create a context$-$level DFD as specified in our lectures$/$reading$.$ Show the system boundary and be sure to include:

The system as process $0$

The external entities $($users and external systems$)$

Properly labeled inbound and outbound data flows