Design Principles Of Mobile Devices
3/28/2016 Assessment 4 Context
https://courserooma.capella.edu/bbcswebdav/institution/ITFP/ITFP3300/Version0715/Course_Files/cf_assessment_4_context.html 1/1
Flexibility in Use
A device should be designed to meet the needs of a wide range of users who may, at the same time, have differing levels of proficiency and ability to access and use the instrument. Flexibility in use means providing alternative methods for completing tasks, as well as allowing users opportunities to personalize their devices to get the most utility and enjoyment from them.
Simple, Intuitive Use
The use of simple and intuitive design suggests that less can appear to be more. The initial perception of simplicity can motivate potential users to adapt to devices that include new mental models. The classic iPod would be one such example. Although when it initially emerged onto the MP3 player market, the central dial was novel, it was nevertheless simple and intuitive for its users. In addition to the innovative central dial arrangement, the simple menu list and the clear font choices also help to present information in a clear and consistent manner, helping users complete their desired tasks. Effective prompts and relevant feedback contribute to the user's sense of flow.
Perceptible Use
Although humans clearly communicate through their mobile devices, the devices themselves need to clearly convey their means of usage to users. Many device design approaches achieve this clarity by assuring a high standard of legibility among their design elements. For instance dark text against a light background provides essential contrast that allows users to more easily decipher text messages and understand menu choices. Coordinating image and text combinations for additional clarity of usage often accentuate the effectiveness of perceptible use. Tactile and auditory cues can likewise add to usercentric design.
Tolerance for Error
In today's fastpaced, technologydriven world, users of devices cannot always give them their full attention while they try to multitask throughout the events of their day. Interface design must accommodate these new, contextual realities. Users are often physically jostled, bumped, or interrupted as they try to carry out tasks on their mobile devices. Devices that have tolerance for error try to take a preventative stance that can help to remedy unintentional inputs such as deleting important files. Warning and confirmation messages often contribute to positive, usercentric design.
Low Physical Effort
Ergonomic Scandinavian furniture design and Web usability are actually related. In fact, the world's leading web usability expert, Dr. Jakob Nielsen, is from Copenhagen, Denmark. Just as chairs should not place extra physical stress on the human body, neither should physical devices, in terms of how they fit in the user's hands. Unnecessary and repetitive physical actions may be avoided by using effective design approaches. Interfaces that categorize the design elements in an organized and efficient manner allow for users to more readily find the information they seek, save time, and reduce eyestrain.
Assessment 4 Context