Under the advisory of Crane NAVSEA in Southern Indiana, we were asked to do a Human Computer Interaction (HCI) study of the IROSSS (Integrated Radar Optical Surveillance and Sighting System) interface. This interface is being implemented on U.S. Naval battleships and destroyers.

The IROSSS is designed as a defense mechanism on these ships. It operates under the control of two users and its functions are as follows:

• Controls searchlight
• Controls mounted guns
• Controls infrared cameras
• Includes radar screen with friendly and hostile targets

Our responsibility was to analyze the interface and make recommendations on improvements before the system is widely distributed to several naval ships in the next few years. We chose the following HCI aspects of the interface to analyze:

• Color Schemes
• User Engagement
• Buttons
• User Control

After researching these aspects, we developed a survey that 100 participants took. The survey tied in directly with the HCI aspects that we researched. We analyzed the results of the survey and developed recommendations on what we think should be changed about the IROSSS interface.