[nfb-talk] Article Missrepresents Curtis Chong:
Kenneth Chrane
kenneth.chrane at verizon.net
Mon May 12 17:03:06 CDT 2008
Microsoft grows DAISY for blind computer users while Adobe wilts
Eric Lai
May 09, 2008 (Computerworld) The release of an esoteric plug-in for a
20-year-old piece of software normally doesn't merit much attention - except
when the software is the ubiquitous Microsoft Word and the add-on could have
a major positive effect on the 1.5 million blind or visually impaired
Americans who use computers, the millions more like them around the globe,
and, potentially, tens or hundreds of millions of people worldwide with
developmental disabilities or reading problems.
Earlier this week, Microsoft announced the availability of a plug-in
(downloadable from openxmlcommunity.org) that lets users of Word 2007, 2003
and XP easily save documents in the DAISY (Digital Accessible Information
SYstem) XML format.
DAISY XML is the latest iteration of a decade-old standard developed by the
DAISY Consortium, a leading nonprofit group serving the vision-impaired, to
be the most accessible format for blind computer users.
Hidden structures
Why DAISY, when screen readers and text-to-speech tools already let blind
computer users hear HTML Web pages and Word or PDF documents recited aloud?
For one, the experience, as illustrated in an April Computerworld feature on
computing for the blind, remains intensely frustrating. Narrator, the screen
reader built into Windows XP and Vista, is so crude that even Microsoft
admits that it is not suitable for daily use.
Meanwhile, popular third-party readers, such as JAWS, are expensive. The
standard version of JAWS, for instance, costs $895; another package,
EasyConverter from Dolphin Computer Access Ltd., weighs in at $5,200. And
the experience with JAWS and others remains uneven or poor, according to
Curtis Chong, president of the National Federation of the Blind in Computer
Science. "If something is coded up wrong, your screen reader sees nothing,"
Chong said.
Why so bad? The problem is that for the blind, the most important parts of a
page are the parts even the sighted can't perceive -- invisible metadata
embedded in the document. What's missed isn't the stylistic metadata that
sighted users usually think about, such as font, size or color, but
attributes such as paragraph marks, table structures and headings, which
determine a document's actual structure.
Good structural metadata lets a blind user nimbly navigate, browse and
search a document. Word and PDF weren't built from the ground up to support
that. DAISY was.
"DAISY is a fantastic format due to its flexibility," said Sam Ogami, an
assistive-technology expert for the California State University system's
chancellor's office. "From DAISY, you can easily move to other accessible
formats, such as Braille or large print, in addition to audio, with little
to no extra work."
Letting users of Microsoft Word -- the most popular text-authoring tool on
the planet -- save documents in DAISY format with one click is a "great step
in the right direction of creating accessible content," said Ogami, who has
tested the plug-in.
George Kerscher, secretary general of the DAISY Consortium, was even more
effusive.
"We would like all publishers to make their content painlessly accessible,"
he said in an interview earlier this spring. "Microsoft is the first one to
step forward to do this."
Growing a DAISY plug-in
The plug-in was developed by Microsoft, the DAISY Consortium and an Indian
software vendor called Sonata Software Ltd. It is also being hosted on
SourceForge as an open-source project.
Andrew Savikas, a publishing software guru at O'Reilly Media Inc. and head
of its annual Tools of Change for Publishing conference, said the Word
plug-in was "long overdue."
When Microsoft started switching from binary to XML document formats in Word
2003, "this kind of conversion/transformation became much more transparent
to implement," he said. He conceded, though, that "you could argue that a
plug-in like this should have come from a third party, rather than from
Microsoft, who I'd assume aren't interested in developing and supporting a
bunch of plug-ins for formats they don't control."
Chong called the plug-in "wonderful," but cautioned that there remains a gap
between theory and practice.
"If the initial Word document wasn't marked up properly by the author [with
metadata] in the first place, then it's as bad as not having the document at
all," he said.
Jutta Treviranus, a professor at the Adaptive Technology Resource Center at
the University of Toronto, argues that this dearth of "consistent
guidelines" for authors interested in creating potentially accessible
documents in Word is only one of several problems.
In a paper she co-published earlier this year, Treviranus argued that Word
2007's native document format, Office Open XML (OOXML), violated other
fundamental tenets such as not conflating stylistic metadata with structural
metadata.
"I have grave concerns with the DAISY XML that will be produced" from a Word
2007 document, Treviranus said.
Meanwhile, Marino Marcich, managing director of the ODF Alliance, argues
that Microsoft's format remains inferior to the OpenDocument Format he
champions.
"The accessibility of ODF was reviewed and subsequent changes were
incorporated in ODF v1.1, establishing ODF as the benchmark, exceeding the
accessibility features of any other document format," he said.
Reed Shaffner, a product manager for Microsoft Office, acknowledges that the
Save-as-DAISY translator is far from perfect today. Highly structured
documents -- an IRS 1040 tax form, for instance, with its multiple fill-in
boxes -- still pose difficulties for the plug-in.
Shaffner is quicker to defend the OOXML format's accessibility features.
"It's already pretty strong. We're making animated graphics accessible, for
instance," he said. Some improvements were made during OOXML's ISO
ratification process two months ago, and more are coming.
Treviranus, he argues, "may be confusing [a document author's] bad behavior
with document standard behavior. The information is there in the standard."
As for criticism from the ODF camp, Shaffner said that ODF may support
accessibility "in theory, but we've put out a translator."
What about Adobe?
Microsoft's proactive embrace of DAISY begs the question: What is Adobe
Systems Inc., the other leading document creation software vendor, doing to
support DAISY?
Nothing directly for now, admits Andrew Kirkpatrick, senior manager for
accessibility at Adobe, though he claims "it is under serious consideration.
DAISY may be a useful format to export to, particularly in the case of
longer documents, such as those created by FrameMaker."
We've heard that before, said Kerscher, who added that he has repeatedly
asked Adobe for a commitment to support DAISY and has failed each time.
Chong said, "Adobe has done a lot of work to make reading a document
accessible, but it has done far less work on the composition side."
What Adobe has done, instead, is enable the latest version of its page
layout program, Creative Suite 3 InDesign, to export into the ePub format.
ePub supports the NIMAS standard, which Kirkpatrick characterized as a
"subset of DAISY."
O'Reilly Media's Savikas thinks Adobe has made a smart choice by backing the
ePub format, which he said is fast becoming the "MP3 of eBooks." But he said
his initial experiments with Adobe's ePub feature left him "disappointed."
"We ran tests on a few of our 'Head First' books, and the resulting output
was essentially useless," he said. After some "back-and-forth with Adobe,"
it became clear that the books had to be redesigned with extra formatting
metadata for ePub, said Savikas. "Most people who hear that InDesign can
export to ePub assume it's as easy as "Save as..." and it's not."
Besides creating a formal program to help third-party screen-reader vendors
make their software work better with Adobe software, Adobe is trying to
improve the accessibility of its own formats, such as PDF, SWF (Flash) and
others, said Kirkpatrick.
"DAISY is popular and may well be a valued format for blind users, but Adobe
is not prepared to determine what is the format of choice for blind users,"
Kirkpatrick said.
Chong agreed, saying that most blind computer users could care less about
the war of words over DAISY versus ePub.
"It's not the format that is of concern to the blind. We just want to make
sure there are programs that we can use," he said.
Let a thousand flowers bloom
In that vein, a plug-in to convert PowerPoint slides into DAISY XML is in
the works, Shaffner said, with the DAISY Consortium just finishing gathering
requirements for such a tool.
An Excel plug-in is unlikely, he said, due to technical difficulty and lack
of user interest.
Meanwhile, the existing Word plug-in is built in such a way that it could
someday be ported to versions of OpenOffice.org that support OOXML, such as
Novell Inc.'s version, Shaffner said.
Besides accelerating the conversion of electronic documents and books into
DAISY for visually impaired computer users, the plug-in(s) could aid in the
DAISY Consortium's new goal of helping to make documents and books
accessible to the illiterate, dyslexic or developmentally disabled.
For instance, the DAISY Consortium is helping to convert HIV and AIDS
prevention manuals into the DAISY format so that poor, illiterate South
Africans can access them. DAISY might also be used to "help synchronize text
and audio and help kids who are learning to read," Shaffner said.
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