The marginalization of people with disabilities, such as visually impaired individuals (VIIs), has driven scientists to take advantage of the fast growth of smart technologies and develop smart assistive systems (SASs) to bring VIIs back to social life, education and even to culture. Our research focuses on developing a human–computer interactive system that will guide VIIs in outdoor cultural environments by offering universal access to cultural information, social networking and safe navigation among other services. The VI users interact with computer-based SAS to control the system during its operation, while having access to remote connection with non-VIIs for external guidance and company. The development of such a system needs a user-centered design (UCD) that incorporates the elicitation of the necessary requirements for a satisfying operation for the VI users. In this paper, we present a novel SAS system for VIIs and its design considerations, which follow a UCD approach to determine a set of operational, functional, ergonomic, environmental and optional requirements of the system. Both VIIs and non-VIIs took part in a series of interviews and questionnaires, from which data were analyzed to form the requirements of the system for both the on-site and remote use. The final requirements are tested by trials and their evaluation and results are presented. The experimental investigations gave significant feedback for the development of the system, throughout the design process. The most important contribution of this study is the derivation of requirements applicable not only to the specific system under investigation, but also to other relevant SASs for VIIs.

视力障碍者（VIIs）等残疾人的边缘化，驱使科学家们利用智能技术的快速发展，开发智能辅助系统（SAS），将VIIs带回社会生活，教育甚至文化中。我们的研究重点是开发人机交互系统，该系统将通过提供对文化信息，社交网络和安全导航以及其他服务的普遍访问，在户外文化环境中指导VII。VI用户与基于计算机的SAS交互以在系统运行期间控制系统，同时可以访问与非VII的远程连接以获取外部指导和陪同。这种系统的开发需要以用户为中心的设计（UCD），该设计包含了对VI用户满意的操作所必需的要求。在本文中，我们介绍了一种针对VII的新型SAS系统及其设计考虑因素，这些系统遵循UCD方法来确定系统的一系列操作，功能，人体工程学，环境和可选要求。VII和非VII都参加了一系列的访谈和问卷调查，从中进行了数据分析以形成系统的现场和远程使用要求。最终要求通过试验进行测试，并给出其评估和结果。在整个设计过程中，实验研究为系统的开发提供了重要的反馈。