
The one thumb, one eyeball test is thus to help you find out if your mobile design allows users to easily use the app with one hand and partially distracted attention. Luke calls the typical mobile usage a "one thumb, one eyeball" experience, since the highly distracted environment causes most mobile users to engage in one-handed use with short spans of partial attention. In a distracted environment, the best form of smartphone interaction is a high-speed, easy-to-use one. It is inexpensive to conduct and may appeal to even the smallest design/development teams on the tightest budgets. The one thumb, one eyeball test is a great way to conduct simple usability research for mobile apps and mobile websites. As a general rule, always test your applications with your users to decide what works best for them in their context.

Note that this may be because users are more familiar with one thumb input processes than voice input processes and the efficiencies might improve as voice input becomes a more widely used form of interaction with smartphones. They concluded it wasn’t that much faster than the one thumb input process. Contact me with any questions or comments.The video shows that the team tested whether voice input could deliver a faster experience. This presentation has been given at 13 different events.

From registration forms that welcome new customers to checkout forms that finalize e-commerce transactions, Web forms frequently broker crucial online interactions. On the Web, forms bridge the gap between people, their information, and your product or service. PDF Web Form Design Best Practices Description
