1. Introduction State of the art & related work odt2braille approach odt2braille architecture Accessibility checker Future work OVERVIEW Jan Engelen odt2braille brings Braille to your Office

2. Braille production = expensive, time-consuming Typical workflow = multi-stage process –scanning, OCR –verify, edit –add markup –Braille formatting & translation Separate tools for each task, duplication of documents, synchronization issues,... INTRODUCTION Jan Engelen odt2braille brings Braille to your Office

3. INTRODUCTION Jan Engelen odt2braille brings Braille to your Office

4. Need to: –reduce cost of Braille production –provide open translation systems –make Braille production more open, available and straightforward for individuals INTRODUCTION Jan Engelen odt2braille brings Braille to your Office

5. RELATED WORK Jan Engelen AutoBraille/NorBraille DAISY XML  Braille Norway, Denmark, Iceland BrailleBlaster DAISY XML / HTML / DOC / PDF  Braille open-source, multi-platform, fully accessible application Dotify open-source translation system for Java define components for sharing between implementations establish more modular approach to Braille translation (17h00 @ room HS 8) odt2braille brings Braille to your Office

6. APPROACH Jan Engelen odt2braille brings Braille to your Office

7. Open Document Format (ODF) as master format –more common and more general-purpose than DAISY –widespread, well-established –many authoring applications –truly accessible (cfr. accessibility tools) –automatic conversion to Braille, DAISY (odt2daisy), Bliss (Concept Coded Framework), large print, etc. APPROACH Jan Engelen odt2braille brings Braille to your Office

8. Free and open-source –http://odt2braille.sourceforge.net –OpenOffice.org / LibreOffice extension APPROACH Jan Engelen odt2braille brings Braille to your Office

9. Smooth integration in a major office suite –not mimicking word-processing features –integrated in existing mainstream word-processor –flat learning curve (experienced in Braille or not) –all functionality embedded in authoring environment –greatly simplifies Braille production workflow APPROACH Jan Engelen odt2braille brings Braille to your Office

10. Separation of content and style –1 content, multiple forms –provide different presentations on an on-demand basis using stylesheets Ink-printing: rich layout (for sighted users) Braille: basic Braille layout DAISY... –Braille stylesheet is stored with content and other stylesheets in the ODT file APPROACH Jan Engelen odt2braille brings Braille to your Office

11. Large scope and flexibility –ambitious: targets all of Europe (& whole world) –broad range of Braille alphabets, rules & conventions –flexible impressive number of languages high degree of layout customisation suitable for professionals –understandable & user-friendly transcribe according to existing Braille formatting guidelines, requiring minimum of user interaction APPROACH Jan Engelen odt2braille brings Braille to your Office

12. ARCHITECTURE Jan Engelen odt2braille brings Braille to your Office

13. Preproccesor –transform original content/stylesheets to alternative representation that is suitable as input for Braille formatter Formatter –produce Braille file in PEF-format –Liblouisxml/Liblouis PEF processor –convert PEF to other file formats –print on a Braille embosser –Braille Utils ARCHITECTURE Jan Engelen odt2braille brings Braille to your Office

14. Liblouisxml –open-source library for Braille transcription of XML –on top of Liblouis: open-source Braille translation and hyphenation engine ARCHITECTURE Jan Engelen odt2braille brings Braille to your Office

15. Braille Utils –cross-platform API for embossing and converting Braille –Portable Embosser Format (PEF) accurate & unambiguous structure: markup (XML) ↔ control characters content: locale-independent Unicode Braille ↔ ASCII PDF of Braille –embossers: Index Braille, Braillo, Interpoint, ViewPlus, CIDAT, Enabling Technologies, Mountbatten ARCHITECTURE Jan Engelen odt2braille brings Braille to your Office

16. Valid & usable Braille < accessible source document OpenOffice.org / LibreOffice extension Make checking accessibility as straightforward as checking spelling –errors & warnings –repair suggestions –(semi-)automatic repair functions ACCESSIBILITY CHECKER Jan Engelen odt2braille brings Braille to your Office

17. More extensive embosser support More accurate Braille translations Availability on more platforms (i.e. Mac OS) FUTURE WORK Jan Engelen