scope:

This document specifies user interfaces designed for full duplex speech interaction. It also specifies the full duplex speech interaction model, features, functional components and requirements, thus providing a framework to support natural conversational interfaces between human and machine. It also provides privacy considerations for applying full duplex speech interaction. This document is applicable to user interfaces for speech interaction and communication protocols for setting up a session-oriented full duplex interactions between human and machine. This document is not applicable to defining the speech interaction engines themselves.