1. Create a use case diagram for the given case study of a Patient Record and Scheduling System. OR (5 marks) A patient record and scheduling system in a doctor's office is used by the receptionists, nurses, and doctors. The receptionists use the system to enter new patient information when first-time patients visit the doctor. They also schedule all appointments. The nurses use the system to record and keep track of the results of each visit including diagnosis and medications. The nurses can also access the information to print out a history of patient visits. The doctors primarily use the system to view patient history. Multiple medications may be prescribed during each visit. The doctors may enter some patient treatment information and prescriptions occasionally, but most frequently they let the nurses enter this information.

2. Develop an activity diagram based on the following narrative. (5 marks) The purchasing department handles purchase requests from other departments in the company. People in the company who initiate the original purchase request are the "customers" of the purchasing department. A case worker within the purchasing department receives the request and monitors it until it is ordered and received. Case workers process requests for the purchase of products under $1,500, write a purchase order, and then send it to the approved vendor. Purchase requests over $1,500 must first be sent out for bid from the vendor that supplies the product. When the bids return, the case worker selects one bid and then writes a purchase order and sends it to the vendor