Question: Case study A: Interacting with smart-phones with one hand is often practiced in a variety of context - e.g. while traveling on trains, buses, carrying

Case study A: Interacting with smart-phones with one hand is often practiced in a variety of context - e.g. while traveling on trains, buses, carrying shopping carts, holding a baby and many more. Moreover, they are practiced among people with different hand-deformities. People with one hand, deformed hand and limited movement of hands often have problems to access the full screen of large screen smart- phones, especially when the navigation panel is presented at the top or extreme corners of the device. As an interaction designer, you have to design this one finger-based touch input system for the smart- phones. a) Describe how you are going to identify the list of requirements of the system. Which data gathering technique will you follow? Give example.

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