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3 - User Interface

Eg associate a folder with a desk which contains a

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Unformatted text preview: nd images by which information is easily recognized, understood and remembered. – E.g., associate a folder with a desk which contains a list of documents Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 13 BUSI 335 WIMP - Pointing Devices Devices Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 14 User Interface Design Interface Design • Design from user’s perspective • Mouse – Ask what your system should do for the user • Touch screen – Profile the characteristics of the users • Physical characteristics, such as age; • Light pen • Knowledge and experience, such as education, computer and task literacy and experience, and reading and typing abilities; • Digitizer • Psychological characteristics, such as attitude and motivation. • Pen-based computing • Human “technology” – Cognition, mental model, and social context – Understand how users believe they should interact with specific interface components BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 15 BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 16 General General Rules for Good User Interface Design Interface Design Design Guidelines Guidelines Effective dialogue Clear messages Meaningful command names Automated data entry data entry Consistent design Warning messages for significant operations Escape route User orientation Help options options Error Trapping Understandable displays • Keep the user in mind; • Anticipate errors and eliminate the ability to make mistakes; bilit • Assume the worst and plan to avoid Assume the worst and plan to avoid surprising results; • Never underestimate the power of simplicity. BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 17 BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo Effective Dialogue Dialogue 18 Clear Messages Messages • Determine when you should use • Match users’ experience (novice vs. words, images, or both. words, expert) • Brief and co...
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