Digital product design is an iterative design process used to solve a functional problem with a formal solution. A digital product designer identifies an existing problem, offers the best possible solution, and launches it to a market that demonstrates demand for the particular solution. The field is considered a subset of product design . Some digital products have both digital and physical components (such as Nike+ and Fitbit ), but the term is mainly used for products produced through software engineering . Since digital product design have become mainstream in the creative industry , a digital product designer oftentimes is simply referred to as a "product designer" in job posts.