Document and Media Accessibility - An Accessibility Checker for LibreOffice and OpenOffice.org Writer - Strobbe, Christophe (f)

1. AccessODF:
Accessibility Evaluation and
Repair for LibreOffice /
OpenOffice.org Writer
Christophe Strobbe, Bert Frees,
Jan Engelen
K.U.Leuven, Belgium
ICCHP, Linz, Austria, 10 July 2012

2. Before AccessODF ...
odt2daisy
Export DAISY books from Writer
http://odt2daisy.sf.net/
odt2braille
Export Braille or emboss from Writer
http://odt2braille.sf.net/
Techniques for accessible authoring
Accessible Digital Office Document (ADOD)
http://adod.idrc.ocad.ca/
ICCHP, Linz, Austria, 10 July 2012

3. AccessODF Objectives
Quality of DAISY & Braille output depends on
accessibility of source
→ Users asked for accessibility checker
Help users evaluate and repair accessibility
issues in Writer
for ODT (and DOC & DOCX)
for ODT as source for DAISY & Braille
for ODT as source for PDF
ICCHP, Linz, Austria, 10 July 2012

4. Other Accessibility Evaluation Tools
Accessibility Checker in MS Word, Excel &
PowerPoint 2010
Only for DOCX, XSLX, PPTX from MS Office 2010
aDesigner (IBM, Eclipse Foundation)
“Plug-ins for accessible PDF documents” from
Zurich Univ of Applied Sciences
(Validate function in Save-as-DAISY plug-in for
MS Word)
ICCHP, Linz, Austria, 10 July 2012

5. AccessODF Status
First version released 8 November 2011
Identifies 30+ errors and warnings:
image / formula / object without text alternative
no default language for the document
span of text / hyperlink without language
identification
table created with tabs / spaces
text & background have low contrast
ICCHP, Linz, Austria, 10 July 2012

6. AccessODF Status
DAISY-specific checks
Image format not supported by DAISY (only PNG
and JPG)
More than 6 levels of headings
Braille-specific checks
Table or image caption cannot be linked
Material is transposed from its original location.
(Lists, text boxes and images inside a table.)
ICCHP, Linz, Austria, 10 July 2012

7. AccessODF, WCAG and ADOD
Mapping between AccessODF checks, WCAG
2.0 and ADOD techniques:
http://accessodf.sourceforge.net/MappingToWCAG.html
Some WCAG requirements are not relevant to
word processing documents
Some WCAG requirements are not evaluated (yet)
Some checks don’t match anything in WCAG
ICCHP, Linz, Austria, 10 July 2012

8. Support for Accessibility Repair
Not just errors and warnings:
“Repair” button: active when
(semi-)automatic repair is
possible, e.g.
empty heading: automatic
missing alt text: semi-automatic
ICCHP, Linz, Austria, 10 July 2012

9. AccessODF Demonstration
ICCHP, Linz, Austria, 10 July 2012

10. AccessODF Wish List
Accessibility evaluation in Impress
(presentations)
Test effect of floating objects and frames on
reading order
Find incorrect language identifications
Support for abbreviated forms
More translations: please volunteer ;-)
ICCHP, Linz, Austria, 10 July 2012

11. Where to Go...
AccessODF:
http://sourceforge.net/projects/accesso
df
Or through LibreOffice extensions repository
In English, Dutch, Greek, French
Use the software, submit bugs, use our forum
ICCHP, Linz, Austria, 10 July 2012

12. LibreOffice Accessibility - Windows
Java Accessibility API: poor support in Windows
screen readers
In 2010 IBM donated IAccessible2 implementation
to Oracle; integration not complete when
Oracle abandoned OpenOffice.org
Oracle donated OOo 3.3 to Apache Foundation
IAccessible2 would be integrated in
OpenOffice.org after version 3.4.0 (Apache
Foundation)
ICCHP, Linz, Austria, 10 July 2012