Recommendation ITU-T Y.4511 describes the convergence framework for enhancement of service intelligence based on Internet of things. Internet of things (IoT) has become a fundamental technology in service infrastructure, integrating with other emerging information and communication technologies (ICTs) to produce intelligent and autonomous solutions. This Recommendation outlines a framework detailing how IoT can be integrated with technologies of artificial intelligence (AI), cloud, edge computing, distributed ledger technology (DLT), and big data to enhance service intelligence.