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Categorization and Comparison of Accessibility Testing Methods for Software Development.
Aleksander Bai1, Kristin Fuglerud1, Rannveig A Skjerve2
1Norwegian Computing Center, Oslo, Norway.
This study enhances understanding of cognitive barriers in accessibility testing by expanding categories and reviewing methods. It recommends selecting diverse testing approaches to ensure broad disability coverage for software development teams.
Area of Science:
- Human-Computer Interaction
- Software Engineering
- Accessibility Research
Background:
- Existing accessibility testing methods vary, from checklists to human testing.
- Relating specific testing methods to user impairments and accessibility barriers remains challenging.
- Current frameworks may not fully address the spectrum of cognitive barriers.
Purpose of the Study:
- To expand the World Wide Web Consortium (W3C) cognitive barriers framework into four categories.
- To provide a comprehensive overview of existing accessibility testing methods and their barrier coverage.
- To offer recommendations for selecting a suite of testing methods for maximum disability inclusion.
Main Methods:
- Literature review of accessibility testing methodologies.
- Expansion and categorization of cognitive accessibility barriers.
- Analysis of barrier coverage across different testing approaches.
Main Results:
- The W3C cognitive barriers framework was expanded from one to four categories.
- An overview mapping testing methods to specific cognitive and other accessibility barriers was compiled.
- A framework for selecting diverse accessibility testing methods was developed.
Conclusions:
- A refined categorization of cognitive barriers improves understanding and testing.
- Selecting a combination of testing methods is crucial for comprehensive accessibility.
- The findings aim to empower software development teams to create more inclusive digital products.
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