UML diagram design: Restaurant Information System Actors: Visitor, Admin, Owner, Supplier, Courier. Processes in the Restaurant Information System Every time you access the restaurant information system, every user is required to complete a registration. In the order process, the admin will record visitor data and order data. Orders are available if the visitor has made a payment. As long as the visitor makes a reservation, all the facilities used by the visitor will be recorded by the admin and will be charged. After the visitor performs the Check Out process, the admin records and calculates the entire cost of the order. Visitors will receive information in the form of restaurant bills. Design a UML diagram including: a. Use case diagrams and scenarios b. Sequence diagram c. Activity Diagrams d. Class Diagram.