Service Products and App Design of Public Diocese in Colleges and Universities To analyze the current service status of the users of public parishes in Colleges and universities, find out the problems of existing equipment and space in public parishes and the relationship between users and managers, enrich the service content of public parishes, enhance the experience of teachers, students and managers in public parishes, alleviate the contradiction between the high demand for teaching resources and idle waste, and innovate the service system of public parishes. On the premise of resource sharing, user and stakeholder research was carried out. With the help of user itinerary map, stakeholder map and other research tools, usercentered, cocreation, process and visualization principles of service design were used to discover the pain points and needs of teachers and students in the teaching process based on user experience, and new service flow chart was used to systematically display the service of public parishes. Innovative content. Intelligent terminal interactive products such as service blueprint, service platform APP, identity information verification equipment and intelligent display equipment have been formed, which optimize the service process of public parish, improve the user experience, and create new service mode and content of public parish.

Shopping Website Accessibility Study Based on Users Mental Models. The arrival of the Internet information age promotes the development of electronic and information platform  website. A website is a provider of information and a platform for users to communicate and interact. Website interface design must consider human cognitive factors, emotional factors, so the website interface design and interaction design is particularly important. Through experimental demonstration and research, this paper takes shopping website as the research object to analyze the mental model of users in website interface design and the influence of different usersxe2x80x99 occupations on the mental model. According to the conclusion of the analysis, firstly, the change process of user mental model in interface interaction is proposed. Secondly, based on the user mental model, this paper summarizes the design principles of the website. Finally, this paper provides a new way of thinking for the study of website accessibility.