Worksheet on Nonfunctional and Functional Requirements 1. A fictional computer company has decided to develop an online store to sell music and movies that can be played on laptops, computers, and ipads that use its software. The software is free and requires the user to establish an account with the online store to buy copies of the music and movies. Visitors who have not yet started an account are allowed to browse through the inventory of music and movies. In order to buy music or a movie, the visitor has to create an account. During the first order, the credit card information is entered by the new member. On all other orders, the credit card information is available until this information is updated. For each order the credit card information is verified and processed before confirming that the order is approved. a. Describe four possible non-functional requirements for the given system. b. Identify the different services (uses) provide by the system to the client