Visualizing Change: The Journey Towards Inclusive Data Accessibility

Samita Prakash Belliganood
VisUMD
Published in
4 min readOct 31, 2023

Samita Belliganood, University of Maryland

In today’s digital age, data visualizations are ubiquitous — from the infographics you see on social media to complex charts in research papers. But how often do we pause to consider if everyone can understand these visualizations?

Figure 1: Designers can support accessibility for people with Intellectual and Developmental Disabilities (IDD) by avoiding pie charts, encouraging natural metaphors and support for working memory, balancing semantics and simplicity, and using discretization with axis-aligned encodings.

Historically, the design of data visualizations hasn’t always taken into consideration the distinct needs of the Intellectual and Developmental Disabilities (IDD) community, unintentionally sidelining them from the myriad benefits of visual data comprehension. However, the tides are changing. Recent research delves deep into understanding how data visualizations can be more inclusive, addressing the cognitive challenges faced by those with IDD and rethinking traditional design conventions.

Why Does This Matter?

Imagine relying on a device to access crucial data, only to find the design so complex that it’s virtually unusable! People with IDD frequently face such challenges, hindering them from tasks many of us take for granted. By ensuring that data is accessible to them, we not only uphold the principle of inclusivity but also empower this community to lead more informed and independent lives.

Key Findings from the Paper

1. Understanding the Challenges: The primary roadblocks faced by people with IDD include overly complicated interfaces, a lack of intuitive visual cues, and an absence of user-friendly feedback mechanisms.

2. The Power of Simplification: Simplifying data presentations and visualizations can drastically improve comprehension for those with IDD. For instance, using more recognizable icons, adopting clear color contrasts, and employing simple language can make a world of difference.

3. The Importance of User Testing: Engaging the IDD community in the development phase ensures that the end product is not only accessible but also resonates with the users’ needs.

Adding Flair to Charts: The Role of Embellishments

Imagine you’re looking at a bar chart, and instead of plain bars, you see cute little dollar sign icons representing monetary values. These added elements are called ‘embellishments’. Symbols (like dollar signs) made it faster for people to estimate trends in the data. However, these same symbols made it a bit trickier for certain groups, especially those with intellectual and developmental disabilities (IDD), to pinpoint exact values.

Clear or Cluttered? The Question of Continuity

When representing data, especially numbers, should we use a smooth, continuous design or a broken-down, discrete style? For instance, should we represent data trends with a continuous line or separate dots? The study found that people were more precise and quicker in spotting trends with discrete (or broken-down) visuals. This advantage was even more pronounced for people with IDD. They were especially faster and more accurate when data was shown in a discrete manner.

However, not all discrete designs were hits. While discrete bars on bar charts were popular, dotted lines on line graphs raised some eyebrows. Some participants felt the urge to count individual dots, which could be more time-consuming and confusing.

Taking a Step Back: The Big Picture

  • Icons and Symbols Matter: They can make data engaging but need to be chosen with care. The association should be clear. For instance, while a dollar sign easily conveys ‘money,’ a stick figure might not always be seen as ‘people.’
  • Simple vs. Detailed: The choice between a straightforward design and a more detailed one might vary based on the audience. For some, especially those with IDD, simpler might be better.
  • To Count or Not to Count: In certain scenarios, the urge to count individual data points might overpower the overall understanding of the trend. So, while discrete designs can be helpful, they should be used thoughtfully.

Looking Ahead: The Future of Data Accessibility for IDD

The paper is not only a call to action but also provides a roadmap for designers and developers. By incorporating IDD-centric design principles, we can ensure that our digital world is truly inclusive.

Furthermore, with the rise of AI and machine learning, there’s potential for adaptive systems that can tailor data presentations based on individual needs. This not only benefits those with IDD but can also cater to a broader audience with varied comprehension levels.

Closing Thoughts

This groundbreaking research shines a spotlight on an often-overlooked community, urging us to rethink inclusivity in the digital realm. The onus is now on developers, designers, and policymakers to ensure that the digital landscape is as inclusive as it is innovative. By embracing these findings, we can create a future where data accessibility is a norm, not an exception, empowering every individual with the tools to comprehend and utilize information effectively. Let’s commit to this vision and make inclusivity a cornerstone of our digital evolution.

Video Highlight:

Citation: Wu, K., Petersen, E., Ahmad, T., Burlinson, D., Tanis, S., & Szafir, D. A. (2021, May). Understanding data accessibility for people with intellectual and developmental disabilities. In Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (pp. 1–16).

About the Author: Samita Belliganood is passionate about data accessibility and believes in the power of inclusive design. With a background in human-computer interaction and an enthusiasm for accessibility research, they are thrilled to share their insights with the VisUMD community.

Note: This article was reviewed and adapted according to Niklas Elmqvist’s guidelines on writing for a popular audience.

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