Research on the Design and Application of Human Computer Interaction Media Based on Digital Trading Platform

The need to support the development of digital transactions based on the diversification of online digital trading platform activities is attracting more and more research. Facing the field of interactive operation and personalized service of interactive pages, how to effectively promote the digital transaction mode of human-computer interaction media design and development has become increasingly difficult. Based on the network digital transaction platform, this paper adopts the interactive digital transaction method of multimedia technology to realize the sharing of high-quality digital transaction resources between digital transactions. Through the overall design of the system, three subsystems including digital video interactive system, digital transaction management system and media design system are obtained. The experiment carried out in-depth design and selection of field equipment. Through the conversion of corresponding network communication modules, the problem of converting field analog signals into digital signals and connecting to the local area network was solved. Finally, in the example design of interactive applications, the function of SMIL language is used to achieve a 97.6% success rate of synchronous playback of multimedia objects, and the error of the interactive interface is reduced to 0.031, which effectively promotes the application of human-computer interaction network technology in the construction of digital trading platforms.