Abstract：After more than 20 years, with the advent of the intelligent era, the practices of user-centered design (UCD) have begun to enter the third stage focusing on the UX and innovative design of intelligent systems. The practices of UCD in China have also begun to enter the deep water area. Current UCD methods were mainly developed based on the needs of non-intelligent systems, and there is a lack of systematic and effective methods for UCD practices in delivering UX and innovative design for intelligent systems. Human factors related disciplines should take the responsibility to provide academic support in the aspects of theory and method. This study suggests 11enhanced UCD methods, a UX-driven innovative design conceptual model, and 9 UX-driven innovative design methods. In addition, in support of designing complex intelligent systems, this study proposes to adopt 6 new methods from the human factors related disciplines. Finally, the paper puts forward suggestions for improving human factors theories to support the design work of complex intelligent systems, transferring human factors theories from mature domains to the intelligent systemsdomain, developing more experimental evidence-based human factors design theories.This study shows that human factors related disciplines can help enhance UCD methods for the UX and innovative design of intelligent systems.
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