User values based evaluation model to assess product universality

Unlike the conventional design methodology, the universal design aims to integrate various user groups within the design space to benefit the user of all ages with distinct abilities. The objective of this work is to ensure universality of the designed product with the help of user-values based evaluation model. In the proposed model, users are classified into three groups based on their abilities and needs. This classification analyses the values associated with the individual needs of a different group of users. The universality of the product is analyzed by using the proposed model and accordingly the product can be improved by incorporating the values that have been overlooked by the designer. The frequently neglected values can be identified to modify universal design principles.Relevance to industry.Providing functional and usable products to all sets of users is the most important goal of industry, in today's marketplace. To achieve this goal, universal product design evaluation model has been proposed in this work. With the help of evaluation model, design firms and designers can ensure the universality of the product at an early phase of design and also while redesigning of the existing products.