The main goal of the study is the analysis of the current state of research and development in the field of smart services as well as the development of the new classification system of smart services, which is based on the knowledge management system analysis approach. This article uses explorative and analytical approaches to review the key issues related to smart services. First, we analyze available definitions of the “smart services” concept and concepts related to it: smart services are based on the idea of co-creation of value and rely on machine intelligence in connected systems. Second, we propose a new extended approach of the smart services classification based on the list of criteria of the knowledge
portals` services: types of the elements comprising the smart service and
the structure of their interconnection; the level of how “smart” or “intelligent” is the service; and dynamic aspects of the service process.
Hence, the contribution of the article is twofold: on the one hand, the smart service concept is approached from different angles and the working definition of this concept is obtained; on the other hand, the smart service system is analyzed through the lenses of established knowledge management methods and new smart services classification is proposed.