Development of quality-of-life technology (QoLT) product and service design model for the elderly

Purpose – This study aims to propose a user-centred Quality-of-Life Technology (QoLT) product and service design strategy tailored for the elderly by considering the evolving technological landscape of the Fourth Industrial Revolution and the shifting values and needs of the ageing population. Design/methodology/approach – This study adopted the widely accepted service design model, the double-diamond process. In the discovery phase, literature on QoLT and elderly users was reviewed. Subsequently, user-centred QoLT domains were identified in the define phase. The development phase involved interface analysis of existing QoLT examples and idea generation through a co-creation workshop with elderly-related experts. Finally, in the delivery phase, in-depth interviews were conducted to prioritise ideas based on user importance and technological innovation, in thereby offering user-centred insights for practical implementation. Findings – Three key concepts essential for QoLT product and service design for the elderly emerged: (1) device-user interaction, (2) user-centred design, and (3) service systematisation and expansion. These key concepts were further translated into an idea map covering major QoLT areas. The map is expected to guide future product and service development aligned with the elderly's life experiences and needs. Research limitations/implications – While this study offers a robust user-centred framework, the limitations include potential biases due to the sample size, focus group composition, and the contextual specificity of elderly needs, which may vary across regions and cultures. Practical implications – This study provides actionable strategies and a structured idea map that developers, designers, and service providers can utilise in creating effective, elderly-oriented QoLT solutions. The study also informs policymakers by offering a user-centred basis for future assistive technology policies. Originality/value – This study stands out by integrating user perspectives and expert insights to establish a comprehensive QoLT design strategy. The study also contributes novel, systematised guidance for enhancing the elderly's quality of life through technology, marking a significant step forward in QoLT Product and Service Design Model.