Speculating a Tactile Grammar: Toward Task-Aligned Chart Design for Non-Visual Perception

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Khalaila, Areen, Cashman, Dylan
Format: Preprint
Published: 2025
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866914095315288064
author Khalaila, Areen
Cashman, Dylan
author_facet Khalaila, Areen
Cashman, Dylan
contents Tactile graphics are often adapted from visual chart designs, yet many of these encodings do not translate effectively to non-visual exploration. Blind and low-vision (BLV) people employ a variety of physical strategies such as measuring lengths with fingers or scanning for texture differences to interpret tactile charts. These observations suggest an opportunity to move beyond direct visual translation and toward a tactile-first design approach. We outline a speculative tactile design framework that explores how data analysis tasks may align with tactile strategies and encoding choices. While this framework is not yet validated, it offers a lens for generating tactile-first chart designs and sets the stage for future empirical exploration. We present speculative mockups to illustrate how the Tactile Perceptual Grammar might guide the design of an accessible COVID-19 dashboard. This scenario illustrates how the grammar can guide encoding choices that better support comparison, trend detection, and proportion estimation in tactile formats. We conclude with design implications and a discussion of future validation through co-design and task-based evaluation.
format Preprint
id arxiv_https___arxiv_org_abs_2510_13731
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Speculating a Tactile Grammar: Toward Task-Aligned Chart Design for Non-Visual Perception
Khalaila, Areen
Cashman, Dylan
Human-Computer Interaction
Tactile graphics are often adapted from visual chart designs, yet many of these encodings do not translate effectively to non-visual exploration. Blind and low-vision (BLV) people employ a variety of physical strategies such as measuring lengths with fingers or scanning for texture differences to interpret tactile charts. These observations suggest an opportunity to move beyond direct visual translation and toward a tactile-first design approach. We outline a speculative tactile design framework that explores how data analysis tasks may align with tactile strategies and encoding choices. While this framework is not yet validated, it offers a lens for generating tactile-first chart designs and sets the stage for future empirical exploration. We present speculative mockups to illustrate how the Tactile Perceptual Grammar might guide the design of an accessible COVID-19 dashboard. This scenario illustrates how the grammar can guide encoding choices that better support comparison, trend detection, and proportion estimation in tactile formats. We conclude with design implications and a discussion of future validation through co-design and task-based evaluation.
title Speculating a Tactile Grammar: Toward Task-Aligned Chart Design for Non-Visual Perception
topic Human-Computer Interaction
url https://arxiv.org/abs/2510.13731