Read the case study given below and perform the following tasks. Identify: Actors of the system and Use Cases that appears as verbs Use Include and Extend relationship where needed Draw a complete Use Case diagram of the system Your customer is tired of his employees who keep coming late from coffee brakes because it takes them ages to prepare and drink their coffee and to clean their equipment afterwards. He asks you to design the prototype of a new revolutionary coffee machine that is both appealing to the eye and yet easy enough to handle even for an IT-specialist. During a brainstorming session on functional requirements, among the first use cases that are brought up there are things like prepare, serve, and cleanUp. While appearing simple at first glance, it soon turns out that the design must pay attention to a lot of details, so for each of the above mentioned use cases there will probably be several included use cases like insertCoffee, or addMilk. Also bear in mind that the coffee machine needs to be refilled, maintained. There might be power brakes or problems with the water supply. Try to cover as many boundary conditions as possible to ensure the office keeps running. Your diagram should contain examples of generalization, > and > relations