Human-Centered Design Components in Spiral Model to Improve Mobility of Older Adults

Abstract

As human grow older; their cognitive needs change more frequently due to distal and proximal life events. Designers and developers need to come up with better designs that integrate older users’ needs in a short period of time with more interaction with the users. Therefore, the positioning of human end users in the center of the design itself is not the key to the success of design artifacts while designing applications for older adults to use a smartphone as the promising tools for journey planner while using the public transportation. This study analyzed the use of human-centred design (HCD) components, the spiral model, and the design for failure (DfF) approach to improve the interac-tions between older users and designers/developers in gathering usability needs in the concept stage and during the development of the app with short iterative cycles. To illustrate the importance of the applied approach, a case study with particular focus on older adults is presented.