How to assess inclusivity?

A woman is carrying a tray of foodThere is some debate on whether personas rather than real people should be used to assess whether a design is accessible, inclusive and useable. So what might be different about “quantitative persona”? The Inclusive Design Team at the University of Cambridge have developed persona that represent different groups of people with similar capabilities, which is enhanced with other personal information. The aim is to see how many people in the population might be excluded from using a particular product or performing a particular task. Their research is reported in a paper where they assessed the task of carrying a tray of food across a cafe, taking into account how using mobility aids restricts hand use. The title of the paper is, Evaluating inclusivity using quantitative personas. The full paper is available by request from ResearchGate. 

AbstractExclusion assessment is a powerful method for assessing inclusivity in a quantitative way. However, its focus on capability data makes it difficult to consider the effect of other factors such as different ways of using a product. We propose addressing this by combining exclusion assessment with quantitative personas. Each persona represents a group of people with similar capabilities, and is enhanced with other personal information. The capabilities of each persona are compared against the product demands to assess whether they (and thus the group they represent) could do a task. The additional persona information helps to determine how they approach and conduct the task. By examining personas that cover the whole of the target population, it is possible to estimate the proportion of that population who could complete the task. We present a proof-of-concept study using personas created from Disability Follow-up Survey data. These were used to assess the task of carrying a tray of food across a cafe, taking into account how using mobility aids restricts hand use.

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