User oriented smart connected product and smart environment: a systematic literature review

Smart Connected Product(SCP) and Smart Environment(SE), typical product-service integrated system under intelligent manufacturing context, have attracted significant attentions from both researchers and practitioners owning to its effectiveness in enabling user interaction and improving user satisfaction. In this paper, we conduct a systematical literature review to summarize the current user-oriented SCP or SE researches. A totally 102 journal articles are fully analyzed to illustrate the current research concentration and highlight future research directions. Different from existing review articles that focus on specific SCP or SE, our research incorporates diverse SCPs or SEs and proposes an objective-based taxonomy, which distinguishes three objective dimensions, that is, integrated optimization within system, vertically iterative optimization of the system and the horizontally collaborative optimization between systems. Besides, we distill five user-oriented indictors, that is, user need identification, user interaction optimization, serve special group, user security protection as well as energy consumption improvement and combine them with three research objectives to unveil the mainstream research concentration. Finally, we summarize the research gap of existing works and propose seven future research directions for scholars and practitioners.