User Interface Design
From ElateWiki
Many professional websites, simulations, software tools, electronic games, and learning / course management systems (LCMSes) have been created based on user interface design. This field draws on human perception and psychology as well as information technology to maximize users' experiences and interactivity.
The Principle of Least Effort suggests that the more convenient a site is to use, the more likely a greater number of people will participate, interact and contribute.
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[edit] Some Apparent Principles
Some sites are built coherently around visual metaphors. The user interface contain images that simulate a particular piece of equipment (dashboard) or scenario. Spatial metaphors are very common, in the simulation of 3D spaces. A site should be as intuitive as possible because users simply assume that based on prior interactions with other online spaces.
User interfaces should be built consistently--in terms of the types of linking, the colors, the locations of particular information or actions, and the overall aesthetic. Users often are not aware of the design principles that have gone into a particular build, but the design helps them learn more effectively.
User interface designs also have to be as accessible as possible.
Also, how information is created and made available affects the usability of a site. The interface often reflects a deeper understanding of the information and functionalities in the site. There is logic in the delivery of both information and functionality.
[edit] Technologies
Designers often use different technologies to create wireframes of sites and the navigation within.