changes of context major changes that, if made without user awareness, can disorient users who are not able to view
      the entire page simultaneously Changes in context include changes of: user agent ; viewport ; focus; content that changes the meaning of the Web page Note A change of content is not always a change of context. Changes in content, such as
      an expanding outline, dynamic menu, or a tab control do not necessarily change the
      context, unless they also change one of the above (e.g., focus). Example Opening a new window, moving focus to a different component, going to a new page (including
      anything that would look to a user as if they had moved to a new page) or significantly
      re-arranging the content of a page are examples of changes of context. Cognitive function test [New] A task that requires the user to remember, manipulate, or transcribe information. Examples include, but are not limited to: memorization, such as remembering a username, password, set of characters, images, or patterns.