Knowing where you are in a hierarchy makes it easier to understand and navigate information. Guideline 1.11 Proposed 2.7.3 Location in HierarchyДў.7.3 (former 4.7.4) Location in Hierarchy: The user can view the path of nodes leading from the root of any content hierarchy in which the structure and semantics are implied by presentation, as opposed to an explicit logical structure with defined semantics (such as the HTML5 Canvas Element), or as a consequence of decentralized-extensibility (such as the HTML5 item / itemprop microdata elements), and only if the user agent keeps an internal model of the hierarchy that it does not expose via the DOM or some other accessibility mechanism. Remote control: Proposed 2.7.2 Access Relationships Microsoft placing Wikipedia on TV-DVD and using mouseless browsing via Perceivable navigation and activation keys: This prevents Mary from having to say the word 'tab' numerous times to get to her desired hyperlink. by speaking the command 'select link 12'). The plug-in overlays each hyperlink with a number that can then be used to directly select it (e.g. Mary cannot use the mouse or keyboard due to a repetitive strain injury, instead she uses voice control technology with uses a mouse-less browsing plug-in to her browser. In this case it is much more efficient for navigation and activation selection points to be both viewable by the user and controllable by their assistive technology. Therefore users often find control by speech recognition to be advantageous.

Some users have problems controlling the mouse and/or the keyboard.

This is sometimes known as mouse-less browsing. Proposed 2.7.1 Discover navigation and activation keystrokes:Дў.7.1 Discover navigation and activation keystrokes: Direct navigation and activation keystrokes are discoverable both programmatically and via perceivable labels. Guideline 2.7 Provide structured navigation. 1.7 Proposed 2.7.7 Configure Set of Important Elements.1.5 Proposed 2.7.5 Access to Relationships which Aid Navigation.1.3 Proposed 2.7.3 Location in Hierarchy.1.2 Proposed 2.7.2 Access Relationships.1.1 Proposed 2.7.1 Discover navigation and activation keystrokes:.

Mouseless navigation