Thread Subject: Re: Proposal remote access requirements
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From: Hoffman, Allen
Date: Wed, Jun 20 2007 11:45 AM
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The following are ideas and discussion items regarding accessibility
requirements for remote access applications.
Background:
Currently often remote access from one system to another is implemented
using text-based terminal emulation such as VT100, or 3270 protocols and
clients, graphical user interfaces such as X-windows, and
remote-desktop-protocol, and variations of each. For text-based remote
access, scrolling text windows can be problematic for some assistive
technologies to handle as much of that type of access was dropped when
such technologies migrated from text-based OS(s) to graphical user
interfaces. In graphical user interfaces such as X-windows,
remote-desktop-protocol, etc, often assistive technologies must be
operated on the server end, with sound being transmitted to the client.
What is needed is that the client receives enough of the underlying
accessibility information for each interface element from the remote end
to pass to the assistive technology on the client end.
Proposed standard:
When software provides either server or client functionality for remote
access to a specific graphical user interface, such software MUST pass
interface element accessibility information from (proposed 21D) from the
server to the client to then be passed to or inspected by assistive
technologies.
Note:
I think we can exempt web browsers from this requirement as there are
already other specific requirements for how content shall work in that
context.
I hope this is a start for discussion that we can wrap up fairly
quickly.
Sean, if you can comment on how RDP functions that would be
enlightening.
Peter, when you are back from vacation, a comment on how Gnome works
during remote access would help.
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