This document provides a framework of voice user interfaces (VUI) for personal mobility services (PMS).

The users of PMS ride personal mobility devices (PMD), which are empowered by electricity or a human, and interact with the PMS through the VUI (see Annex A) attached to the PMD.

This document describes the functional requirements, the performance requirements and the procedure of the VUI. This document is applicable to a VUI attached to a PMD, which can be used for interaction between users and the PMD.