Exploring the impact of user-centered design on quality enhancement in coffee processing in Sri Lanka

Abstract

The quality of Sri Lankan coffee production depends largely on post-harvest processing methods, where small-scale farmers play a vital role. This study explores how User-Centered Design (UCD) principles can help improve the quality of coffee while reducing the physical strain faced by small-scale farmers. Field research was carried out in Maskeliya (Hatton) and Galkanda (Nuwara Eliya), involving ten farmers who practice both wet and dry processing methods. Data were collected through observations and semi-structured interviews during processing activities. The study identified recurring issues such as repetitive manual work, poor ergonomic conditions, and outdated equipment that affect both farmer well-being and coffee quality. A comparison between wet and dry processing revealed that wet processing results in better coffee quality but requires more physical effort. The paper suggests that integrating UCD principles can improve tool design, reduce manual effort, and enhance workflow efficiency, ultimately supporting higher-quality production. This research highlights the potential for participatory and ergonomic design approaches to strengthen Sri Lanka’s coffee industry through improved farmer experience and sustainable processing practices.