You are required to draw an activity diagram to model the process described below: The following is a business description of a process of customer registration in one of the existing systems that the new XYZ Publishers System will be replacing. A customer enter into the system to obtain a subscription. If he/she is an existing customer who wishes to subscribe to an additional magazine, he/she is asked for their customer reference number and to confirm their name and billing address.

If any of the customers details have changed then these are updated. If an existing customer cannot remember their customer reference number then he/she is asked for their last name, and these are used to find the correct customer record. The customer is then reminded of keeping their customer reference number for future use. If they are new customers then their name and address are recorded and a customer reference number is quoted for future use. The customer is asked which magazine they want, and whether they want a one-year or two-year subscription and also asked for the delivery address. A price is quoted and send, and if the customer wishes to proceed then card payment details are taken and these are verified. Finally, the name of the magazine, type of subscription, delivery address and price are confirmed one more time and the customer will receive a thanks message before the process ends.