What is Mild Intellectual Disability

In recent years, the use of smartphones by people with intellectual disabilities (ID) has increased, leading to the development of applications designed to ease and improve their lives and independence, and help them integrate into society. Designing applications tailored to the needs of these users is complex, particularly in terms of accessibility and usability. This chapter presents a case study of the design and development process of a dedicated application aimed at helping people with mild ID in handling cash transactions. The chapter explores the design principles of mobile interfaces for people with ID. It introduces the use of the design thinking methodology, which focuses on user-centered design and helps gain an in-depth knowledge of the end users and their needs. Based on the performed user research, recommendations for the design of such applications are highlighted.