Replacing Vision - Using a Screen Reader
Introduction:
This ADE will provide you
with a quick introduction to using a screen reader while navigating a
user interface.
In this ADE your goal will
be to use a screen reader (i.e., software that converts text to speech)
to navigate and read several web pages written in white-on-white text
and answer a few questions about each page.
At the end of this ADE, you
will have experienced some of the difficulties of navigating and using
websites with a screen reader and be able to discuss the impact of
using speech as a primary modality in navigation and reading tasks.
The Department's computer
labs provide two choices for screen readers: Microsoft's
Windows Narrator and Apple's VoiceOver. Microsoft chooses to
support third party screen reader development and, as a result,
provides Windows Narrator as a very limited screen reading tool (it is
mostly used during operating system and AT software
installs). Apple developed their own product for Mac OS X,
VoiceOver, as part of the operating system.
While
screen readers that are included with operating systems provide basic
functionalities, dedicated screen readers are often used to provide
enhanced functionality.
What to Do:
- To begin, please view the video "Introduction
to the Screen
Reader".
NOTE: most of the available videos were created in Windows 7.
- JAWS is one of the most popular screen reading
packages.
- Please view Navigating
Web Pages with JAWS. This is a very gentle introduction to
using JAWS.
- Then please view Navigate
Websites with JAWS. This introduces a lot more functionality
than you need to use for this assignment.
- Download and install a demonstration version of
JAWS.
- The
installation requires a system reboot.
- The
installation also comes with FSReader, Freedom Scientific's DAISY
player software. DAISY is the Digital Accessible Information System
format for e-publications that focuses on making them as fully
accessible as possible.
- Once it is installed, you have 40 minutes to use it for
free before it stops working.
- You should try to get item 5 (below) done in the 40 minutes you
have. Don't worry about reading all the pages that are linked to the 3
that you are to explore. Just get to them to see what they are about
and hurry back to the pages that you can't see.
- The clock starts going from the time the installation is complete, whether or not you are actually using Jaws.
- Rebooting your system will allow you
another 40 minute demo time. You shouldn't have to do this more than once.
- Use JAWS to navigate and read the three web pages listed
below. You will find that, visually, these pages appear to be
written in white-on-white text (i.e., you will only see
white). You will also find that these pages will not allow
you to select the text (i.e., no cheating!).
- When you first enter the pages, JAWS will try to read the
name of the page
- You
navigate between elements on the page using the tab keys and between
items on a menu using arrow keys, when you arrive at an element, JAWS
will read it to you
- You can interact with the elements on the page just as
you can do when you see them
- You can select a link that you are on using the return
key
- You can use the space bar to fill a check box or radio
button
- You can type into a field, then use the tab to move to
the
next element
- JAWS
Keyboard Commands / Shortcuts help serious users to
do a lot more (but that you don't need to learn or use for this ADE).
- When you first enter some pages, JAWS will try to read
the page unless you pause it by pressing the control key
Note: There is
absolutely no guarantee that these web pages are fully accessible.
You are expected to only refer to these pages when completing this
assignment. Do not explore the source pages.
If while doing this exercise you get seriously lost, the Replacing
Vision - Using a Screen Reader homepage (the page you are reading now)
can be reached from any of these three pages using access key Control-4
on Mac (or ALT-4 on PC). The web pages are:
- Now please watch video "Screen
Readers and the Web" to see some of the problems that screen readers and their users encounter.
What to Hand-in:
Submit a written report
that:
- Answers the following questions:
- According to Page 1:
- What mathematical puzzle is discussed on this page?
- Outside of the obvious applications to computer
science, what applications of this puzzle are discussed?
- In the three-peg problem discussed on Page 1, how
many moves would be needed to move 8 plates?
- According to Page 2:
- What two things can web developers do to make
navigating forms easier?
- How can you group a set of form controls in HTML?
- What is a "legend" and why would you use it?
- On Page 3:
- There are many links that do not work with this
page, what kind of information does JAWS give you when the link doesn't
work?
- Why might it be that it doesn't read exactly what
you see on the screen?
- In the final video:
- Which problem that was discussed surprised you the most? Why was this most surprising?
- Describes your experience with this ADE (what worked, what
did not work, where you had some trouble, where you had lots of
trouble, etc.).
- Feedback
- What were your expectations of this ADE?
- Did this ADE meet your expectations? Provide a rating
between 1 and 7, where 1 means not at all, 4 means somewhat, and 7
means absolutely. Please explain your choice.
- Did you feel that the video(s) for this ADE was
appropriate? Why or why not? Provide a rating between 1 and 7, where 1
means not at all, 4 means somewhat, and 7 means absolutely. Please
explain your choice.
- Do you have any suggestions for other possible videos?
- Did you feel that the questions above got you to think
about the real and serious issues regarding this ADE? Provide a rating
between 1 and 7, where 1 means not at all, 4 means somewhat, and 7
means absolutely. Please explain your choice.
- If you have any suggestions on how to improve this ADE,
please include it here.