This is a UML diagram showing the process of booking an appointment at the Core Hospital. For example, if I am the patient, I first need to register and log in to the system. Then I should search for experts, locations, or dept. After confirming the information, I can create an appointment and lastly pay the bill either via Paypal or bank transfer. More details about the process and information about how the doctor acts in this process can be learned on the diagram. You can find this template on EdrawMax and try to design a UML diagram easily.