With the growing emergence of ergonomic intervention aiming at designing future artefacts, needs analysis is extending to the anticipation of future needs. Both precursory users and experts are known for their deep knowledge of the studied field. In this study, we conducted 36 needs anticipation interviews with ordinary users, precursory users and experts, in order to determine the contribution of each profile to the identification of future needs. The lexical and manual analysis of the interviews shows that the precursory users' speech is the most valuable in terms of both richness and novelty. The discourse of the experts is also richer and more original than that of the ordinary users and differs from that of the precursory users: professional-based for the experts and experience-based for the precursory users. We therefore recommend the inclusion of both experts and precursory users in the need's analysis and anticipation phase.

随着旨在设计未来人工制品的人体工程学干预越来越多，需求分析正在扩展到对未来需求的预测。先驱用户和专家都以其对所研究领域的深入了解而闻名。在本研究中，我们对普通用户、先驱用户和专家进行了 36 次需求预期访谈，以确定每个配置文件对识别未来需求的贡献。访谈的词法和人工分析表明，无论是丰富性还是新颖性，前驱用户的演讲都是最有价值的。专家的话语也比普通用户更丰富、更原创，不同于先行用户：专家讲专业，先行用户讲经验。