Input assistance References
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General
Error Identification
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/error-identification.html
Error Suggestion
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/error-suggestion.html
Provide Clear Instructions
Tips for Getting Started - 3WC - Web Accessibility Initiative
https://www.w3.org/WAI/tips/writing/#provide-clear-instructions
Entering Data, Error Prevention, & Recovery
Cognitive Accessibility Roadmap and Gap Analysis
https://www.w3.org/TR/coga-gap-analysis/#table3
Multi-step form design: Validation, error messages and contextual help
Kristen Willis
Identify Input Purpose
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/identify-input-purpose.html
Accessible Authentication
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/accessible-authentication
Error Prevention
Error Prevention (All)
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/error-prevention-all.html
Help
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/help.html
Error Prevention (Legal, Financial, Data)
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/error-prevention-legal-financial-data.html
Pointer Cancellation
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/pointer-cancellation.html
Labels or Instructions
Understanding Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Understanding/labels-or-instructions
Providing text descriptions to identify required fields that were not completed
Techniques for the Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Techniques/general/G83.html
Using Aria-Invalid to Indicate An Error Field
Techniques for the Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA21.html
Identifying a required field with the aria-required property
Techniques for the Web Content Accessibility Guidelines (WCAG) 2.1
https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA2.html
Providing the ability for the user to review and correct answers before submitting
Techniques for the Web Content Accessibility Guidelines (WCAG) 2.1