When considering the design criteria for the potential product, I will be focusing on the following things...
Form: personally, a very important piece of criteria for me. Form is what attracts the consumer to the product and creates a desire for the product. The form would definitely have to relation to the function, as form follows function.
Function: the function of the product would have to achieve its purpose. It would have to accomplish whatever task it's meant to, as well as solve the particular social issue that I will be focusing on.
Ergonomics: the universality of the design is also important. Left or right-handed users will be considered. It would have to be comfortable and not create any stress during the use of it.
Ease of Use: whether the product is intuitive upon first glance and doesn't require much energy to figure out how to operate it.
Color & Material: the color and material of the product also plays a large role. This criteria also can tie into the others such as ergonomics. Depending on which materials is chosen, it can create or lack comfort. It would also have to create a representation of what the product is intended for, or create a type of metaphor related to the topic.
Size & Portability: the size and portability of the product is also a criterion that will be focused on. The product would need to be something that is easily transportable not only for manufacturing reasons but even when it is in the hands of the consumer. It's not to be difficult for the consumer to bring around if it requires that they carry it on them.
Price: pricing of the product would relate back to the manufacturing as well as the material choice. Typically, the cheaper the product the better because then it is able tor each a larger group of consumers and communities, not being exclusive to those that are better off than others.