1) Based on the following scenario, draw a use case diagram to model the analysis of the requirements. In a private children's hospital, the receptionist is responsible to keep track or maintain information about the client by entering information about the patient including the head of household and keep track of each visit by the patient. Patient information is also entered and maintained by the admin officer. The admin officer also prints the invoices on monthly basis and sent to the head of household. When the invoices are printed, the business manager double-checks a few invoices against information in the system to make sure it is being printed correctly. He/she also enters payment information when it is received. The admin officer also prints an overdue invoice report showing heads of household who are behind on their payments