Casei 1. Draw dataflow diagram for online examination system A Data Flow Diagram (DFD) is a graphical representation of the \"Mow\" of student information system. A DFD is often used as a preliminary step to create an overview of the system. A DFD defines each domain boundary and illustrates the logical movement and transformation of data within the defined boundary. It identifies any external entities along with their data interfaces that interact with the processes of interest. DFD are used by systems analyst to design information processing systems but also as a way to model whole organizations. It can be used to provide a clear representation of any function. A two-dimensional diagram that explains how data is processed and transferred in a system Movements of data through the different transformations or processes in the system are shown in Data Flow Diagram. The basic requirements for the design of this system are: Facility to conduct online examination Login facility It saves time as it allows number of students to give exam at a time and displays the results as the test gets over. User can register, login and give the test with his specific id, and can see the results. Functional Requirements Required software is for conducting online examination and providing results. The system should satisfy the following requirements. Administrator Aspect: 1. Taking back up of the database. o Editing Deleting Creating the records 2. Adding faculty, department 3. Changing the super password. Department Aspect: o Logging into the system. 4. Sending result to specific student. 5. Accepting registrations of candidates. 6. Adding the candidate to a group 7. Posting questions 8. Marking correct answer within the given option. Non-Functional Requirements 1. After completing the exam, the entire score of the student will be calculated. 2. The software shall support use of multiple users at a time.