NBN EN ISO 9241-920:2016

ISO 9241-920:2009 gives recommendations for tactile and haptic hardware and software interactions. It provides guidance on the design and evaluation of hardware, software, and combinations of hardware and software interactions, including: the design/ use of tactile/ haptic inputs, outputs, and/ or combinations of inputs and outputs, with general guidance on their design/ use as well as on designing/ using combinations of tactile and haptic interactions for use in combination with other modalities or as the exclusive mode of interaction the tactile/ haptic encoding of information, including textual data, graphical data and controls the design of tactile/ haptic objects, the layout of tactile/ haptic space interaction techniques.
It does not provide recommendations specific to Braille, but can apply to interactions that make use of Braille.
The recommendations given in ISO 9241-920:2009 are applicable to at least the controls of a virtual workspace, but they can also be applied to an entire virtual environment — consistent, in as far as possible, with the simulation requirements.
NOTE It is recognized that some interactive scenarios might be constrained by the limitation that a real workspace is to be modelled in a virtual environment. Objects can be in suboptimal positions or conditions for haptic interaction by virtue of the situation being modelled.