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Computer science involves handling and calculating information in computer applications with a user interface (UI) that manages human interaction. Human-Computer Interaction (HCI) is the study of human interaction with computer software applications. HCI specialists focus on screen design for all kinds of applications, including air traffic control systems, navigation systems, and mobile phones. Effective UI design considers human behaviors and preferences, and a poorly designed UI can ruin a good software application.
Computer science is the study of handling and calculating information within computer applications. Typically, a computer application includes a user interface (UI) that manages the interaction between the computer and human users. Human-Computer Interaction (HCI) is the study of human interaction with computer software applications.
The user interface of software applications is considered to be the first line of development. This computer science specialty requires projects that carefully consider human behaviors and preferences. Human-Computer Interaction is the behavioral study of human factors based on the design of a user interface within a computer application.
A poorly designed user interface can destroy the perception of a good software application. Effective UI design is about looking good and behaving right. Human-computer interaction requires designers to consider details such as fonts, flow, control positions, and the overall intuitiveness of a user interface.
The computer industry includes specialists in networking, operating systems, database administration, software development, and user interface design. Within each specialty engineers learn the tricks of the trade. HCI specialists focus on screen design for all kinds of applications.
Screen designers don’t limit their work to standard computers. These experts also make Personal Digital Assistant (PDA) applications, video games and navigation systems. Human-Computer Interaction is the art of building any automated device that people will interact with.
A good example of effective HCI can be seen in current air traffic control systems. Users of these systems are responsible for ensuring that planes do not collide with other planes in the sky. The air traffic control system user screen will change appearance to alert controllers of any problems. Typically, the color of objects will become brighter and bolder as the situation worsens. Also, sounds can be added to draw the user’s attention to the problem.
Many modern cars include navigation systems that also rely on good human-computer interaction. A quality design here helps drivers to find their location and driving directions easily. When the driver approaches a change of direction, the application warns him in advance of an impending change. These systems typically include time and range to destination calculations and displays.
Modern mobile phones also include human-computer interaction design. Using your phone to find contacts, send messages, or retrieve voicemails requires a well-designed user interface. Generally, users of modern products expect a device to be easy to learn.
