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Worked in a 5–person team, directed and guided by Dr. Blickensderfer , to improve the overall smartphone using Human Factors analytical methods and techniques. Used survey data to derive the primary and secondary tasks of the smartphone, according to the users. Created a Hierarchical Task Analysis to obtain step-by-step information of mental and physical activity between the user and the system, which allowed the redesign of tasks to increase efficiency. Redesigned both physical and visual interface to be user-centered instead of technologically centered.