ABSTRACT Apparel co-design in online has emerged as a promising approach to enhancing customer experience by offering customised apparel. However, effectively communicating accurate product requirements through product configurators for co-design is a challenge for non-specialists. This study proposes an approach to improve the online apparel co-design by developing a natural language-based, self-service technology-enabled chatbot to effectively elicit customer requirements. The study was based on sports bra as a case study, with a Wizard of Oz approach used to characterise the chatbot requirements through a newly developed website. Thematic analysis was conducted on chatlogs generated by thirty participants who co-designed a sports bra with the assistance of a product expert. Key findings were used to develop a reference model based on a morphological box, which helps design and develop a chatbot on product configurators in the online apparel retail industry to enhance experience through effective customer requirement elicitation.
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