Unified Website Accessibility Assessment Framework

2022 ◽  
pp. 135-168
Author(s):  
Zehra Altuntaş ◽  
Pınar Onay Durdu

In this chapter, a unified web accessibility assessment (UWAA) framework and its software has been proposed. UWAA framework was developed by considering Web Content Accessibility Guideline 2.0 to evaluate accessibility of web sites by integrating more than one evaluation approach. Achecker tool as an automated evaluation approach and barrier walkthrough (BW) as an expert-based evaluation approach were integrated in the UWAA framework. The framework also provides suggestions to recover from the problems determined to the evaluators. The websites of three universities were evaluated to determine the framework's accuracy and consistency. It was revealed that the results obtained from automated and expert-based evaluation methods were consistent and complementary with each other. Furthermore, it has been demonstrated that problems which cannot be determined by an automated tool but which can be detected by an expert can be identified by BW method.

Author(s):  
Sven Schmutz ◽  
Andreas Sonderegger ◽  
Juergen Sauer

Objective: The present study examined whether implementing recommendations of Web accessibility guidelines would have different effects on nondisabled users than on users with visual impairments. Background: The predominant approach for making Web sites accessible for users with disabilities is to apply accessibility guidelines. However, it has been hardly examined whether this approach has side effects for nondisabled users. A comparison of the effects on both user groups would contribute to a better understanding of possible advantages and drawbacks of applying accessibility guidelines. Method: Participants from two matched samples, comprising 55 participants with visual impairments and 55 without impairments, took part in a synchronous remote testing of a Web site. Each participant was randomly assigned to one of three Web sites, which differed in the level of accessibility (very low, low, and high) according to recommendations of the well-established Web Content Accessibility Guidelines 2.0 (WCAG 2.0). Performance (i.e., task completion rate and task completion time) and a range of subjective variables (i.e., perceived usability, positive affect, negative affect, perceived aesthetics, perceived workload, and user experience) were measured. Results: Higher conformance to Web accessibility guidelines resulted in increased performance and more positive user ratings (e.g., perceived usability or aesthetics) for both user groups. There was no interaction between user group and accessibility level. Conclusion: Higher conformance to WCAG 2.0 may result in benefits for nondisabled users and users with visual impairments alike. Application: Practitioners may use the present findings as a basis for deciding on whether and how to implement accessibility best.


First Monday ◽  
2015 ◽  
Author(s):  
David Kreps ◽  
Mhorag Goff

The focus of much academic work on Web accessibility has been concerned with the lack of implementation of the Web Content Accessibility Guidelines. There seems, as yet, however, to have been little critical reflection on the Guidelines themselves — save perhaps some awareness of the heterogeneous nature of the Web, and the difficulties facing Web developers trying to ensure their work displays true to their intentions across a wide range of different browsers and devices, making use of continually evolving and contested code. Yet, as this paper highlights, the long drawn out process by which version 2.0 of the WCAG came into being hides many skeletons, including aspects of the process of developing standards that bear closer scrutiny, and reveal much when viewed through Latourian eyes. The findings of this paper suggest that the WCAG2.0 are almost irrelevant today — to the detriment of those for whom they were made — and that the process of creating them was at fault.


2021 ◽  
Vol 5 (5) ◽  
pp. 194-200
Author(s):  
Abdul Aziz Hamzah ◽  
Zatul Amilah Shaffiei ◽  
Nor Hayati Abdul Hamid ◽  
Nurulnadwan Aziz

Information ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 40 ◽  
Author(s):  
Abdullah Alsaeedi

With the growth of e-services in the past two decades, the concept of web accessibility has been given attention to ensure that every individual can benefit from these services without any barriers. Web accessibility is considered one of the main factors that should be taken into consideration while developing webpages. Web Content Accessibility Guidelines 2.0 (WCAG 2.0) have been developed to guide web developers to ensure that web contents are accessible for all users, especially disabled users. Many automatic tools have been developed to check the compliance of websites with accessibility guidelines such as WCAG 2.0 and to help web developers and content creators with designing webpages without barriers for disabled people. Despite the popularity of accessibility evaluation tools in practice, there is no systematic way to compare the performance of web accessibility evaluators. This paper first presents two novel frameworks. The first one is proposed to compare the performance of web accessibility evaluation tools in detecting web accessibility issues based on WCAG 2.0. The second framework is utilized to evaluate webpages in meeting these guidelines. Six homepages of Saudi universities were chosen as case studies to substantiate the concept of the proposed frameworks. Furthermore, two popular web accessibility evaluators, Wave and SiteImprove, are selected to compare their performance. The outcomes of studies conducted using the first proposed framework showed that SiteImprove outperformed WAVE. According to the outcomes of the studies conducted, we can conclude that web administrators would benefit from the first framework in selecting an appropriate tool based on its performance to evaluate their websites based on accessibility criteria and guidelines. Moreover, the findings of the studies conducted using the second proposed framework showed that the homepage of Taibah University is more accessible than the homepages of other Saudi universities. Based on the findings of this study, the second framework can be used by web administrators and developers to measure the accessibility of their websites. This paper also discusses the most common accessibility issues reported by WAVE and SiteImprove.


Author(s):  
Media Anugerah Ayu ◽  
Mohamed Ahmed Elgharabawy

Previous researches have highlighted the importance of web accessibility of a website. Its importance has made the W3C (World Wide Web Consortium) come up with Web Content Accessibility Guidelines (WCAG) as a guideline for developing an accessible website. Amongst websites available in the web wide world, many of them are fall under the education institution website category. These education institution websites are mostly the first door that people will go to visit to get information about education services and courses provided by the institution. Thus, to be accessible is an essential issue for these websites. Another issue that gets much attention in the current competitive internet world is to be visible by popular search engines and ranked at their top lists. For higher learning institutions there is an online ranking that they like to be in the top list, i.e. Webometrics. This paper attempts to address those two issues of web accessibility and being at the top list. It presents a study that investigates whether web accessibility has a contributing effect to ranking position in Webometrics and popular search engines. The research covers websites from higher learning institutions and education domains. Three popular search engines are used in this research, i.e. Google, Yahoo! and Bing. The study produces interesting results that would be useful as a guide for higher learning institutions that want to improve their online ranking.


Author(s):  
Ye. A. Kosova

The article discusses the results of the analysis of massive open online courses (MOOCs) on web accessibility and web accessibility in e-learning. Using the search by keywords in four MOOC aggregators and total browsing of the four Russian-language online education platforms, 38 free and 28 paid courses on the research topic were allocated. The only one course in Russian — “Web accessibility in e-learning” (Stepik platform) was detected. The following positions presented on MOOCs’ promo pages were analyzed: platform, author, target audience, duration of training, access (open / closed), cost, student’s achievement document (certificate / badge / other); training mode (independently / with instructor / other); prerequisites (starting skills). An average MOOC “portrait” in the field of web accessibility has been formed: target audience — web developers/web designers (45 % of MOOCs) or developers/teachers of online courses (24 %); prerequisites — not required (76 %); achievement document — certificate for an additional fee (55 %); platform — Coursera (26 %), Canvas (24 %) and EdX (21 %). The content of the nine MOOCs available for study was analyzed in detail. It was shown, that the content of MOOCs on the web accessibility in e-learning can vary and have different depth depending on the target audience of students, but it must include: concepts of web accessibility and universal design in learning and related WCAG guidelines; web content accessibility assessment methods; methods for developing accessible online materials.


Author(s):  
Celeste Eusébio ◽  
Maria João Carneiro ◽  
Leonor Teixeira ◽  
Diana Lemos

This chapter examines the website accessibility of museums located in Portugal (N = 575), based on the web content accessibility guidelines (WCAG 2.0), and on the three type of conformance levels (A, AA, and AAA), using two web diagnostic tools: AccessMonitor and TAW (Test de Accessibilidad Web). The results show that the average accessibility of museum websites is 5.80 on a scale from 1 to 10. However, while according to AccessMonitor, there are 14 websites (2.43% of the total) with a level of accessibility of 10 (excellent web accessibility practices); there are also some websites with a global index lower than 3 (classified as bad practice). The results obtained through TAW show that an average of 58.43 problems were identified in each website analyzed. These results highlight that several improvements should be introduced in the websites of Portuguese museums in order to make information available to all people.


Author(s):  
Maria Alciléia Alves Rocha ◽  
Gabriel de Almeida Souza Carneiro

Web content should suit both a general audience and visually-impaired individuals. Therefore, Web applications should be assessed against accessibility standards as Web Content Accessibility Guidelines (WCAG) and the Brazilian e-Government Accessibility Model (eMAG). This chapter presents MIAV's development process and the obtained results. The MIAV complies with the WCAG and eMAG, combining automated and user-opinion-based assessment approaches. First, a pilot test was run to fine-tune MIAV. Next, participants were asked to identify and report several accessibility issues on IFFluminense's Portal, Q-Academico, and Moodle. They then suggested enhancements for better browsing experience. AccessMonitor was run and tested the same Web pages to generate two indicators: the average accessibility index and the percentage of nonconformities by accessibility level. Results showed that none of the evaluated applications met all the accessibility criteria. These experiments allowed IFFluminense's IT degree students to raise an awareness of the significance of Web accessibility.


2011 ◽  
Vol 30 (1) ◽  
pp. 34 ◽  
Author(s):  
Camilla Fulton

With an abundance of library resources being served on the web, researchers are finding that disabled people oftentimes do not have the same level of access to materials as their nondisabled peers. This paper discusses web accessibility in the context of United States’ federal laws most referenced in web accessibility lawsuits. Additionally, it reveals which states have statutes that mirror federal web accessibility guidelines and to what extent. Interestingly, fewer than half of the states have adopted statutes addressing web accessibility, and fewer than half of these reference Section 508 of the Rehabilitation Act or Web Content Accessibility Guidelines (WCAG) 1.0. Regardless of sparse legislation surrounding web accessibility, librarians should consult the appropriate web accessibility resources to ensure that their specialized content reaches all.


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