1) Create Activity diagram Use-case diagram Class diagrams Sequence diagram for the following: A) Developing a new online attendance system to be developed for a university. The steps of the activity diagram are as follows: (You have to follow every step to create the complete activity diagram) a) The faculty is asked to first enter valid username and password in the system. b) If an invalid username or password is entered, a message is displayed that faculty has entered wrong username or password. c) If valid username or password is entered, the form depicting the course name, course id and list of the students are displayed. The form also displays the week number and session number. d) If the faculty selects any invalid session (more than session 3), an error message is displayed. e) After the faculty has completed with the attendance, he/she saves the attendance. Upon saving the attendance, a message is prompted whether the user is sure to save the attendance. If the faculty selects yes, attendance is saved and the home page is displayed to the user. f) If the faculty selects no, the entire process is repeated. B) Developing a new public library system in the city of Sharjah. a) Every customer must have a valid Library card in order to rent the book. Customer can rent the book for seven days at a time. Every time a customer rents a book, the system must ensure that the customer does not have any overdue books. If so, the overdue books must be returned and the overdue fee paid before customer can rent for more books. b) If the customer has returned the overdue books, but has not paid the overdue fee, the fee must be paid before a new book can be rented. c) Every morning, the Librarian prints the report that lists overdue books, and if a book is two or three days overdue, the Librarian calls to remind the customer to return the book.