Interaction design is the mix of industrial design, engineering psychology, business strategy, and art. Some problems that face interaction designers include, different types of people needing different things, the merging of look with function and user experience, the latter can be difficult for those who go to school for a degree in fine arts. Another problem is the outsourcing of industrial designers to cheaper workers who are just as qualified but will get a product to market for less. Innovation in the relatively new field of software design is a key part of the new interaction designer, and an importance on user experience will decide whether a software is successful. Another part of interaction design is the physiological aspect, trying to shape what people do and how they think, or don’t think about their actions.