Case Study: Online University Library System An XYZ university wants to build an online website for the university library. Students must enter their valid credentials information into the login form of the website to allow using the online library. The system should allow the students to search for books and create a request to issue the required book. The request shall be received by the system, which can check the book status. If the requested book available, the system will display the book details to students. If students want to use the hardcopy of the book, they can visit the library and collect such book. In the same system, librarians can access their accounts with valid credentials information and check the coming book requests. If there are some requests, these librarians will check the book status and then send an email to the students who have requested the book in order to issue the book. The issue book process includes taking the student's information and updates his file. In addition, the librarian's file and the borrowed book file will be updated.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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draw a Level 0 DFD for the given case study.
Activity Description:
The aim of this activity to check students' understating about modeling the system
functionality using the Data Flow Diagram (DFD) technique. Student will learn how
draw the logical DFD for the given case study using Online Smart draw software or
Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams,
which represents level 0 DFD.
Activity:
Case Study: Online University Library System
An XYZ university wants to build an online website for the university library. Students must
enter their valid credentials information into the login form of the website to allow using the
online library. The system should allow the students to search for books and create a request
to issue the required book. The request shall be received by the system, which can check the
book status. If the requested book available, the system will display the book details to students.
If students want to use the hardcopy of the book, they can visit the library and collect such
book.
In the same system, librarians can access their accounts with valid credentials information and
check the coming book requests. If there are some requests, these librarians will check the
book status and then send an email to the students who have requested the book in order to
issue the book. The issue book process includes taking the student's information and updates
his file. In addition, the librarian's file and the borrowed book file will be updated.
Once the student has done his work with the book, he can return it to the library through the
librarian. The return book process will check the details from the borrowed book file. If
everything is ok and the book is returned within the provided time limit then the return process
will update information files including the book list, book borrowed book, librarian, and student
files. Otherwise, the return process shall call another process to calculate the fine, an invoice
will be generated for the student and the book files, and librarian file will be updated. After the
payment, the student's status will be updated in the student file.
Transcribed Image Text:Activity Description: The aim of this activity to check students' understating about modeling the system functionality using the Data Flow Diagram (DFD) technique. Student will learn how draw the logical DFD for the given case study using Online Smart draw software or Visual Paradigm editor. The expected outcome is neatly create and labeled diagrams, which represents level 0 DFD. Activity: Case Study: Online University Library System An XYZ university wants to build an online website for the university library. Students must enter their valid credentials information into the login form of the website to allow using the online library. The system should allow the students to search for books and create a request to issue the required book. The request shall be received by the system, which can check the book status. If the requested book available, the system will display the book details to students. If students want to use the hardcopy of the book, they can visit the library and collect such book. In the same system, librarians can access their accounts with valid credentials information and check the coming book requests. If there are some requests, these librarians will check the book status and then send an email to the students who have requested the book in order to issue the book. The issue book process includes taking the student's information and updates his file. In addition, the librarian's file and the borrowed book file will be updated. Once the student has done his work with the book, he can return it to the library through the librarian. The return book process will check the details from the borrowed book file. If everything is ok and the book is returned within the provided time limit then the return process will update information files including the book list, book borrowed book, librarian, and student files. Otherwise, the return process shall call another process to calculate the fine, an invoice will be generated for the student and the book files, and librarian file will be updated. After the payment, the student's status will be updated in the student file.
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