Digital technologies are encouraging manufacturing companies in their servitization process by accelerating the offer of integrated product and service to create new value and grow relationships with customers in the Industry 4.0 era. In parallel, digitalization and servitization research streams are merging and paving the way for the Smart Product-Service System (Smart PSS). By analyzing the concept of Smart PSS, this paper questions the convergence between digital and service orientations and considers how digital technologies are used to enable decisions along the PSS lifecycle and/or at different planning levels. Applying topic modeling, a semi-systematic literature review on the combination of digital technologies with PSS has highlighted five main research streams: PSS design, digital servitization, assessing tool for PSS decisions, knowledge management along the lifecycle, sustainability business models. The development over time of these research streams has been tracked leading to the definition of a new research agenda on Smart PSS.

数字技术通过加速集成产品和服务的提供，以在工业4.0时代创造新的价值并增进与客户的关系，从而鼓励制造公司进行服务化过程。同时，数字化和服务化研究流正在融合，为智能产品服务系统（Smart PSS）铺平了道路。通过分析智能PSS的概念，本文对数字化和服务导向之间的融合提出了质疑，并考虑了如何使用数字技术在PSS生命周期和/或不同计划级别上做出决策。应用主题建模，对数字技术与PSS结合进行的半系统文献综述，重点介绍了五个主要研究领域：PSS设计，数字服务化，用于PSS决策的评估工具，生命周期中的知识管理，可持续性商业模式。跟踪了这些研究流随时间的发展，从而确定了有关智能PSS的新研究议程。