Special needs in pleased-based products design. A case study

The chapter presents predicting needs criteria in design of products for people with special needs, overcoming the efficacy and efficiency product requirements, and giving particular attention to the identification of product characteristics for users’ satisfaction. A case study is presented concerning the study of special needs of people with movement disorders, in order to identify design principles and products requirements. Then a user-centred design process of a domestic telephone for people affected by Parkinson’s disease is shown, in which the component acceptability has been previously emphasized. Design criteria for telephone likeability and easy of use have been defined.