ITU-T F.921 PDF

This Recommendation specifies requirements for the design of inclusive audio-based network navigation systems (IABNNSs) to accommodate users with vision impairment as well as users with a wide range of characteristics and capabilities. This Recommendation aims to help design professionals to achieve an inclusive environment through IABNNSs that augment the physical environment by the provision of aural information about environments for users. This Recommendation does not consider the specialized requirements of people who are deaf or with impaired hearing.

In addition, while this Recommendation recognizes the necessity to provide audio-based network navigation outputs in languages determined by the user, provision of specific solutions is beyond scope of this Recommendation. Implementers are encouraged to ensure that the instructions are accessible to and understood by as many users as possible and are encouraged to provide for the use of a wide range of languages. Future work aims, among other things, to address this issue, and will explore the use of meta-coding for providing a flexible user-centric translation system.