Robust

Fourth of the four POUR principles is to ensure that web content can be used reliably by a wide variety of user agents, including assistive technologies.
In this Section

Robust principles include:

Guideline 4.1

Compatible: Maximize compatibility with current and future user agents, including assistive technologies

Guideline Number

Level

Recommendations

4.1.1 Parsing

A

Significant HTML/XHTML validation/parsing errors are avoided. Check at http://validator.w3.org/

4.1.2 Name, Role, Value

A

Markup is used in a way that facilitates accessibility. This includes following the HTML/XHTML specifications and using forms, form labels, frame titles, etc. appropriately.