Rule FORM-14
Browser or client side (i.e. using javascript) validation of a form control values


Best Practice Type: Manual Check

When content of a form is validated as the user fills out each form field, an alert box must indicate if the input is invalid as the user tries to move the focus to the next form control.



Associated Accessibility Guidelines and Standards

Guideline or
Requirement Priority Test
IITAA 9.1 Ensure that links are understandable out of context. Required Violation
Section 508 1194.22 (n) When electronic forms are designed to be completed on-line, the form shall allow people using assistive technology to access the information, field elements, and functionality required for completion and submission of the form, including all directions and cues. Required Violation
WCAG 1.0 none none
WCAG 2.0 3.3.3 Error Suggestion: If an input error is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content. Required Violation



Evaluation Techniues

Testsuite Tests