Academic researchers and others have long struggled with making data visualizations accessible to people who are blind. One technological approach has been 3-D printing tactile representations of data, in the form of raised bar graphs and line charts. But, often, the intended users have little say in the actual design process, and the end result isn’t as effective as planned.
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https://techxplore.com/news/2020-03-3q-collaborating-users-accessible.html
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