Tag Archives: Accessibility

Strategies for Accessible E-Learning

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Why Teach Accessible Classes?

No matter if you’re teaching a full semester class or a one-off workshop, you will be teaching disabled learners, whether they disclose their disabilities or not. All of your students deserve an equitable learning experience and accessible practices eliminate barriers for all users.

man using a braille keyboard writer
Image by Sigmund on Unsplash

Web Content Accessibility Guidelines (WCAG)

One of the most important standards when it comes to accessibility on the web is the Web Content Accessibility Guidelines. These guidelines are split into four components: Perceivable, Operable, Understandable, and Robust, or POUR.

Perceivable

  • Everyone can identify your content not matter how they perceive information.
    • Use text, audio, and video alternatives for content.
    • Make your lessons adaptable for different student needs.

Operable

  • Learners should be able to navigate your course with ease.
    • Have large and obvious navigation buttons.
    • Give enough time or eliminate timed progression counters.
    • Make your content keyboard navigable.

Understandable

  • Content should be clear and concise.
    • Avoid using jargon and keep text content simple.
    • Use specific language: Instead of “click here” use “click next.”

Robust

  • Content can be accessed by assistive technologies (such as screen readers).
    • Make sure your content is compatible with assistive technology.
    • Update any dead links or finicky buttons.
    • Learners should be able to access course materials with reasonably outdated software.
a teacher with a student, pointing to something on a laptop
Image by Desola Lanre-Ologun on Unsplash

Best Practices

Now that I’ve gone over the basic web accessibility standards, here are some practical tips that use can use to make your class materials more accessible.

Course Structure

  • You want your course structure to be easily digestible, so break up lessons into manageable chunks.
  • Asynchronous courses are courses that allow learners to complete work and attend lectures at their own pace. You may want to consider some form of this to allow your students flexibility.

Text and Links

  • Headings and titles should be formatted properly. Instead of just bolding your text, use headings in numerical order. In Word, you can accomplish this by selecting Home > Styles and selecting the heading you want.
heading one and heading two in the Word styles interface

Images

  • Always include alt-text with your images. There will be different ways of doing this in different programs. Alt-text describes the image for users who cannot see it. For instance, in the alt-text I describe the image below as “a beagle with its tongue out.”
  • If the image is purely decorative, you can set it as such.
a beagle with its tongue out
Image by Milli on Unsplash

Videos

  • Videos should have error-free captioning. It can be useful to include a written transcription.
  • Video interfaces should be navigable using a keyboard (spacebar to start and stop).

Tables

  • Avoid using tables if you can, they can be challenging for screen readers to decipher.
  • Tables can be made accessible with proper web design. For a instructions on how to create accessible tables visit WebAIM’s Accessible Tables Guide.

Color Contrast

examples of good and bad color contrast
Image made with dopelycolors
  • Make sure that your content is readable, whatever colors you use. Avoid going wild: dark text on light backgrounds and light text on dark backgrounds are standard.
  • If you want to check your color contrast, try the WCAG Color Contrast Checker.
  • Avoid providing information that solely relies on the student being able to distinguish color i.e. red meaning “stop” and green meaning “go.”

Resources to Learn More

When it comes to accessible practices, there’s a lot of information to cover. If you want to learn more, here are some resources to get you started.

By working to make your classes accessible, you can create a better learning experience for all your students.

Unreadable: Challenges and Critical Pedagogy to Optical Character Recognition Software 

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In the 21st century, Optical Character Recognition (OCR) software has fundamentally changed how we search for information. OCR is the process of taking images with text and making them searchable. The implications of OCR vary from allowing searchability on massive databases to promoting accessibility by making screen readers a possibility. While this is all incredibly helpful, it is not without fault, as there are still many challenges to the OCR process that create barriers for certain projects. There are also some natural limitations to using this software that especially have consequences for time-sensitive projects, but other factors within human control have negatively influenced the development of OCR technology in general. This blog post will explore two issues: the amount of human labor required on an OCR project and the Western biases of this kind of software. 

Some text in ABBYY FineReader. Not all of the appropriate text is contained within a box, indicating the human labor that needs to go in to correct this.
Public Domain Image

Human Labor Requirements 

While OCR can save an incredible amount of time, it is not a completely automated system. For printed documents from the 20th-21st century, most programs can guarantee a 95-99% accuracy rate. The same is not true, however, for older documents. OCR software works by recognizing pre-built characters the software was initially programmed to recognize. When a document does not follow that same pattern, the software cannot recognize it. Handwritten documents are a good example of this, in which the same letter may appear differently to the software, depending on how it was written. Some programs, such as ABBYY FineReader, have attempted to resolve this problem by incorporating a training program, which allows users to train the system to read specific types of handwriting. Even still, that training process requires human input, and there is still much work for individuals to put into ensuring that the processed document is accurate. As a result, OCR can be a time-consuming process that still requires plenty of human labor for a project.  

Western Biases  

Another key issue with the OCR process is the Western biases that went into the creation of the software. Many common OCR programs were designed to handle projects with Latinized scripts. While helpful for some projects, this left barriers to documents with non-Latinized scripts, particularly from languages commonly used outside the West. While advances have been made on this front, the advancements are still far behind that of Latinized scripts. For example, ABBYY FineReader is one of the few software programs that will scan in non-western languages, but it cannot incorporate its training program when those scripts aren’t Latinized. Adobe Acrobat can also scan documents with languages that use non-Latinized scripts, but its precision is less consistent than with those languages that do.  

An old version of ABBYY FineReader. The text scanned on the left is a language with a non-Latinized script. The right side shows a variety of errors due to the system's lack of knowledge of that language.
Photo Credit: Paul Tafford 

Addressing the Issues with OCR 

Although OCR has performed many amazing tasks, there is still much development needed when it comes to projects related to this aspect of scholarly research. One crucial component when considering taking on an OCR project is to recognize the limitations of the software and to account for that when determining the scope of your project. At this stage, OCR technology is certainly a time-saver and fundamentally changing the possibilities of scholarship, but without human input, these projects fail to make an impact. Likewise, recognizing the inequality of processing for non-western languages in some of the more prevalent OCR software (which several developers have looked to offset by creating OCR programs specifically catered to specific non-Latinized languages). Acknowledging these issues can help us consider the scope of various projects and also allow us to address these issues to make OCR a more accessible field.

A Different Kind of Data Cleaning: Making Your Data Visualizations Accessible

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Introduction: Why Does Accessibility Matter?

Data visualizations are a fast and effective manner for communicating information and are increasingly becoming a more popular way for researchers to share their data with a broad audience. Because of this rising importance, it is also necessary to ensure that data visualizations are accessible to everyone. Accessible data visualizations not only help an audience who may require a screen reader or other accessible tool to read a document but are also helpful to the creators of the data visualization as it brings their data to a much wider audience than through a non-accessible data visualization. This post will offer three tips on how you can make your visualization accessible!

TIP #1: Color Selection

One of the most important choices when making a data visualization are the colors used in the chart. One suggestion would be to use a color blindness simulator to check the colors in the data visualization and experiment to find the right amount of contrast between colors. Look at the example regarding the top ice cream flavors:

A data visualization about the top flavors of ice cream. Chocolate was the top flavor (40%) followed by Vanilla (30%), Strawberry (20%), and Other (10%).

At first glance, these colors may seem acceptable to use for this kind of data. But when ran through the colorblindness simulator, one of the results creates an accessibility concern:

This is the same pie chart above, but placed under a tritanopia color blindness lens. The colors used for strawberry and vanilla now look the exact same and blend into one another because of this, making it harder to discern the amount of space they take in the pie chart.

Although the colors contrasted well enough in the normal view, the color palettes used for the strawberry and vanilla categories look the same for those with tritanopia color blindness. The result is that these sections blend into one another and make it more difficult to distinguish their values. Most color palettes incorporated in current data visualization software are already designed to ensure the colors do not contrast, but it is still a good practice to check to ensure the colors do not blend in with one another!

TIP #2: Adding Alt Text

Since most data visualizations often appear as images in either published work or reports, alt text is a crucial need for accessibility purposes. Take the visualization below. If there was no alt text provided, then the visualization is meaningless to those who rely on alt text to read a given document. Alt text should be short and summarize the key takeaways from the data (there is no need to describe each individual point, but it should provide enough information to describe the trends occurring in the data).

This is a chart showing the population size of each town in a given county. Towns are labeled A-E and continue to grow in population size as they go down the alphabet (town A has 1,000 people while town E has 100,000 people).

TIP #3: Clearly Labeling Your Data

A simple but crucial component of any visualization is having clear labels on your data. Let’s look at two examples to see what makes having labels a vital aspect of any data visualization:

This is a chart for how much money was earned/spent at a lemonade stand by month. There is no y-axis labels to describe how much money is earned/spent and no key to discern the two lines that represent the money made and the money spent.

There is nothing in this graph that provides any useful information regarding the money earned or spent at the lemonade stand. How much money was earned or spent each month? What do these two lines represent? Now, look at a more clearly labeled version of the same data:

This is a cleaned version of the previous visualization regarding how much money was earned/spent at a lemonade stand. The addition of a Y-axis and key now show that more money was spent in January/February than earned, but then changes in March peaking in July, and then continuing to fall until December where more money is spent than earned again.

In adding a labeled Y-axis, we can now quantify the difference in distance between the two lines at any point and have a better idea of the money earned/spent in any given month. Furthermore, the addition of a key at the bottom of the visualization distinguishes the lines telling the audience what each represents. By clearly labeling the data, it is now in a position where audience members can interpret and analyze it properly.

Conclusion: Can My Data Still be Visually Appealing?

While it may appear that some of these recommendations detract from the creative designs of data visualizations, this is not the case at all. Designing a visually appealing data visualization is another crucial aspect of data visualization and should be heavily considered when creating one. Accessibility concerns, however, should have priority over the visual appeal of the data visualization. That said, accessibility in many respects encourages creativity in the design, as it makes the creator carefully consider how they want to present their data in a way that is both accessible and visually appealing. Thus, accessibility makes for a more creative and transmissive data visualization and will benefit everyone!

Making Your Work Accessible Online

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A person uses a braille reader

Unsplash @Sigmund

What is Web Accessibility?

Web Accessibility is the ability for individuals with vision, hearing, cognitive, and mobility disabilities to access web content online via their preferred methods.

WCAG defines web content as:

  • Natural information such as text, images, and sounds
  • Code or markup that defines structure, presentation, etc.

The essential components of web accessibility include:

  • Content
  • Web browsers
  • Assistive Technology
  • Users’ Experience
  • Developers
  • Authoring Tools
  • Evaluation Tools

Why It Matters

Individuals with disabilities not only use the web but also contribute to its functions. Website accessibility focuses on the needs of people with disabilities. However, by considering how to make information more available, interactive, and easy to use, we also make content more accessible for everyone.

A website that uses best practices for accessibility provides equitable access and opportunities to all its users, creates a great user experience, increases website interaction (multi-modal interaction), and enhances the overall usability of the site.

Introducing Web Content Accessibility Guidelines (WCAG)

The WCAG developed out of the World Wide Web Consortium’s (WC3) mission of developing international standards for the continued development of the web and the W3C Web Accessibility Initiative’s (WAI) mission to gather people from varying organizations to create guidelines and resources for people with disabilities.

The WCAG create “a single shared standard for web content accessibility that meets the needs of individuals, organizations, and governments” worldwide.

The WCAG has four accessibility principles, which forms the acronym, POUR:

  • Principle 1: Perceivable
    • The information and methods of interacting with hardware and software must be presented in ways that users can perceive. Examples include having text alternatives and using captioning in videos.
  • Principle 2: Operable
    • The hardware and software elements and navigation must be practical for users. Examples include ensuring keyboard accessibility and allowing users enough time to read and understand content.
  • Principle 3: Understandable
    • The information and the operation of hardware and software must be readable and understandable for users. Examples include ensuring that the text is easy to read and retaining the same style of program selections on different pages.
  • Principle 4: Robust
    • The content must have high compatibility so it can be interpreted by a variety of software used to access the web, including assistive technologies. Examples include parsing, that is, ensuring that html elements have start and end tags and screen readers.

Tips: Validate the accessibility of your website using these tools: Web Accessibility Evaluation Tools List

What has the University of Illinois Done to Meet these Standards?

University of Illinois web developers adhere to these web accessibility standards:

  • The Illinois Information Technology Accessibility Act (IITAA)
  • Section 508 of the Reauthorized Rehabilitation Act of 1998
  • The Web Content Accessibility Guidelines (WCAG)

The Main Library provides technological assistance via:

  • Hardware
    • Large Screen Monitors and Adjustable Tables
    • Clearview+ Magnification System
    • Braille Display
    • Tranquility Kits
  • Software
    • JAWS (Job Access With Speech)
    • Kurzweil 3000
    • ZoomText Magnifier/Reader
    • OpenBook
    • Dolphin EasyReader
    • OpenDyslexie

Please see Accessibility and Assistive Technology LibGuide for more information.

If you are interested in learning more about web accessibility and the WCAG, visit the WCAG website: https://www.w3.org/WAI/standards-guidelines/wcag/

Big Ten Academic Alliance Open Access Developments

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Last month, the Big Ten Academic Alliance (BTAA) made a series of announcements regarding its support of Open Access (OA) initiatives across its member libraries. Open Access is the free, immediate, online availability of research articles coupled with the rights to use those articles fully in the digital environment. Put plainly, Open Access ensures that anyone, anywhere, can access and use information. By supporting these developments in OA, the BTAA aims to make information more accessible to the university community, to benefit scholars by eliminating paywalls to research, and to help researchers to publish their own work.

Big ten academic alliance logo

On July 19, the BTAA announced the finalization of a three-year collective agreement with the Open Library of Humanities (OLH), a charitable organization dedicated to publishing open access scholarship with no author-facing article processing charges. OLH publishes academic journals from across the humanities disciplines, as well as hosting its own multidisciplinary journal. This move was made possible thanks to the OLH Open Consortial Offer, an initiative that offers consortia, societies, networks and scholarly projects the opportunity to join the Open Library of Humanities Library Partnership Subsidy system as a bloc, enabling each institution to benefit from a discount. Through this agreement, the BTAA hopes to expand scholarly publishing opportunities available to its member libraries, including the University of Illinois.

Following the finalization of the OLH agreement, the BTAA announced on July 21 the finalization of a three-year collective action agreement with MIT Press that provides Direct to Open (D2O) access for all fifteen BTAA member libraries. Developed over two years with the support of the Arcadia Fund, D2O gives institutions the opportunity to harness collective action to support access to knowledge. As participating libraries, the Big Ten members will help open access to all new MIT Press scholarly monographs and edited collections from 2022. As a BTAA member, the University of Illinois will support the shifting publication of new MIT Press titles to open access. The agreement also gives the University of Illinois community access to MIT Press eBook backfiles that were not previously published open access.

By entering into these agreements, the BTAA aims to promote open access publishing across its member libraries. On how these initiatives will impact the University of Illinois scholarly community, Head of Scholarly Communication & Publishing Librarian Dan Tracy said:

“The Library’s support of OLH and MIT Press is a crucial investment in open access publishing infrastructure. The expansion of open access publishing is a great opportunity to increase the reach and impact of faculty research, but common models of funding open access through article processing charges makes it challenging for authors in the humanities and social sciences particularly to publish open access. The work of OLH to publish open access journals, and MIT Press to publish open access books, without any author fees while also providing high quality, peer reviewed scholarly publishing opportunities provides greater equity across disciplines.”

Since these announcements, the BTAA has continued to support open access initiatives among its member libraries. Most recently, the BTAA and the University of Michigan Press signed a three-year agreement on August 5 that provides multi-year support for the University of Michigan Press’ new open access model Fund to Mission. Based on principles of equity, justice, inclusion, and accessibility, Fund to Mission aims to transition upwards of 75% of the press’ monograph publications into open access resources by the end of 2023. This initiative demonstrates a move toward a more open, sustainable infrastructure for the humanities and social sciences, and is one of several programs that university presses are developing to expand the reach of their specialist publications. As part of this agreement, select BTAA members, University of Illinois included, will have greater access to significant portions of the University of Michigan’s backlist content.

The full release and more information about recent BTAA announcements can be found on the BTAA website. To learn more about Open Access efforts at the University of Illinois, visit our OA Guide.