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It is not clear that the table embedded in the table is unaffected by the role of presentation being applied to the containing table. Also, it should be platform agnostic and look more like a DOM tree even though it is an accessible object tree. This way a web author can see how applying role="presentation" removes objects from the accessibility tree. So, I would recommend putting the DOM tree on the left with the role attributes. On the right I would have an accessible object tree, with the roles on the objects, that looks like the DOM tree but without the objects removed due to role="presentation applied" See the figure from DOM 1: http://www.w3.org/TR/REC-DOM-Level-1/introduction.html This allows the author to see a comparison of how the DOM tree and the now slimmed down accessibility apply. This is also platform agnostic (accessibility API independent) and looks like something the author is familiar with.
(In reply to Rich Schwerdtfeger from comment #0) > It is not clear that the table embedded in the table is unaffected by the > role of presentation being applied to the containing table. Also, it should > be platform agnostic and look more like a DOM tree even though it is an > accessible object tree. This way a web author can see how applying > role="presentation" removes objects from the accessibility tree. > > So, I would recommend putting the DOM tree on the left with the role > attributes. On the right I would have an accessible object tree, with the > roles on the objects, that looks like the DOM tree but without the objects > removed due to role="presentation applied" > > See the figure from DOM 1: > http://www.w3.org/TR/REC-DOM-Level-1/introduction.html > > This allows the author to see a comparison of how the DOM tree and the now > slimmed down accessibility apply. This is also platform agnostic > (accessibility API independent) and looks like something the author is > familiar with. Hi Rich I have updated the example(s) in question to make it clearer, I have not yet modified the representation style of the acc tree, will look into this. http://w3c.github.io/aria-in-html/#use-of-role-presentation please have a look.