Re: GitHub issue on checkbox and radio button labels

1.3.1 <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#content-structure-separation-programmatic> Info and Relationships: Information, structure <http://www.w3.org/TR/2015/NOTE-UNDERSTANDING-WCAG20-20150226/content-structure-separation-programmatic.html#structuredef>, and relationships <http://www.w3.org/TR/2015/NOTE-UNDERSTANDING-WCAG20-20150226/content-structure-separation-programmatic.html#relationshipsdef> conveyed through presentation <http://www.w3.org/TR/2015/NOTE-UNDERSTANDING-WCAG20-20150226/content-structure-separation-programmatic.html#presentationdef> can be programmatically determined <http://www.w3.org/TR/2015/NOTE-UNDERSTANDING-WCAG20-20150226/content-structure-separation-programmatic.html#programmaticallydetermineddef> or are available in text. (Level A)

Is there a definition in WCAG for the term "or are available in text.” 

So a title attribute can create not just an accessible name 4.1.2 but also a relationship connection 1.3.1? I could see the argument for aria-labelledby as that’s an association but aria-label or title are not connecting anything programmatically to the input. 

Paul J. Adam
Accessibility Evangelist 
www.deque.com