QUESTION 8: UML As the developer of the Utopian Operating System, you want to ensure that every Machine using uOS is kept secure by always having the most recent version of uOS installed. You want...

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Extracted text: QUESTION 8: UML As the developer of the Utopian Operating System, you want to ensure that every Machine using uOS is kept secure by always having the most recent version of uOS installed. You want each machine that uses uOS to be notified automatically whenever there is an update ready to be installed. New machines must be added to the list of machines that receive notifications about new updates. Machines may also be removed from the list of machines. This functional- ity can be achieved through the Observer Design Pattern where the subject keeps track of a list of Machines which it notifies whenever there is a new uOS available. Provide a UML class diagram for the Observer Design Pattern applied to the problem stated above.