Final answer:
The method of just changing the color scheme and logo of an existing shoe is not a good way to do background research for a new sneaker. Effective research includes trying on different shoes, discussing preferences with people, and observing trends, all of which inform a design that considers comfort, support, and physical dynamics of shoe design.
Step-by-step explanation:
If you wanted to build a new improved type of sneaker, a method that would not be a good way to do background research and specify requirements for your new shoe would be to find a shoe you really like, change the color scheme and put your new logo on it (option 3). This approach does not provide any new insights into shoe design or address how the shoe meets users' needs, whereas the other options involve active research and engagement with potential users.
To effectively develop an improved sneaker, it is essential to understand the various features that are important to users, such as comfort, support, and durability. Methods such as trying on different sneakers, talking to diverse groups of people about their preferences, and observing popular trends can provide valuable data that informs the design process. It's also critical to consider the physics of shoe design, including the texture and pattern of the soles for different conditions, and the overall structure of the shoe to ensure it fits well without a break-in period and avoids potentially harmful designs like high heels with narrow toe boxes.