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Data Flow

Diagram

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        Contextual Level

                            

               The above contextual level shows how all the entities, the student, the professor, and any potential employer, can interact with the e-Course Portfolio System.

              A student can use it to submit their assignments and in return receive their grade and marked assignments from their professor. A professor on the other hand can use it to pick up ungraded assignments and to return a grade and marked assignments to his/her students. The system also enables any potential employers to view the work of a student.


        Level 1

                 

               Level 1 shows how the e-Course Portfolio System works in greater detail.

               The first process, “Submit Work into System” is the process that a student can use to submit his or her assignment, which is placed into a online course work data store, where all assignments are collected until the due date of the assignment. Once all the assignments are collected, an electronic copy is made to keep for storage.

               The assignments are then passed to the second process, “Grade Submitted Work”, which passes the ungraded assignments to the professor. Grade Submitted Work, can also be used by the professor to send the corrected assignments, as well as the grade, back to it. The process will then deposit the marked assignments into the online course work data store and update the grade data store excel sheet with the mark.

               “View Portfolio” process, is the third process in the system. It can be used by any potential employer to view the various work completed by a student throughout their University years. The employer has to make a request and wait for the system to retrieve the information from the course work data store, to view the work of a student.

               Students, as well as potential employers can use the “View Grade”, to make a request to obtain grads. The grades are retrieved from the grade data store and sent to the View Grade process. Both the student and the potential employer make a request to view the grades. They are then grated access to view the grade or denied access.

               The fifth process, “Contact Professor”, enables students to communicate with their professors. A request from a student is sent to the process, from where it is to be sent to the appropriate professor. The professor then answers the request and can  respond by sending a message back to process to be delivered back to the student.
       

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