NBI stands for NorthBound Interface. It brings to ONAP a set of API that can be used by external systems as BSS for example. These API are based on TMF API.
Global NBI architecture for Honolulu release¶
Following illustration provides a global view about NBI architecture, integration with other ONAP components and API resource/operation provided.
Technical information about NBI (dependencies, configuration, running & testing) could be found here: NBI_Developer_Guide