Terrier News is a monthly newsletter devoted to various breeds of terriers and topics of interest to terrier owners and breeders. Annie West, the editor and publisher, asked you to help her design a system to enter and manage the hundreds of classified ads that Terrier News publishes. Some ads are for dogs wanted; some are for dogs for sale; and some offer products and services.

a. Design a suitable source document for ads that are telephoned or mailed in.

b. Suggest at least four user interface design guidelines that could be used for the new system.

c. Suggest several types of controls that might be used on the switchboard you plan to design. Explain why you chose each control, and create a storyboard that shows the switchboard layout.