NWDAF (Network Data Analytics Function) is a new network function that collects data from 5G Core network functions, performs network analytics and provides insights with closed loop automation to authorized data consumers. These include external users taking advantage of open APIs to help generate greater innovation and unlock new value. Nokia’s distributed NWDAF architecture makes analytics available where needed to meet the varying latency requirements of 5G use cases.
Read more (Using NWDAF to create value in 5G use cases): https://www.nokia.com/blog/using-nwdaf-to-create-value-in-5g-use-cases/