JOMDoc and JOBAD are libraries for processing and publishing content math. JOMDoc provides Java tools for working with OMDoc documents, including validation, rendering, and restructuring. JOBAD is a JavaScript API that makes OMDoc documents interactive by enabling features like customization, information lookup, rewriting, and discussion forums. Together JOMDoc and JOBAD allow integration of services like notation definitions, rendering, and external data into interactive math documents.

1. Processing and Publishing Content Math with
JOMDoc and JOBAD
Content Math Training Camp 2010
Christoph Lange
Jacobs University, Bremen, Germany
KWARC – Knowledge Adaptation and Reasoning for Content
July 07, 2010
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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2. JOMDoc – Java API (not only) for OMDoc
http://jomdoc.omdoc.org (maintainer: Vyacheslav Zholudev) – a
library of 300+ Java classes featuring . . .
Java object model (one class per XML element) for OMDoc (and
MathML and OpenMath for formulæ), plus many other services:
Schema validation
Renderer: OpenMath/Content MathML → Presentation MathML
(pattern-matching XML notation definitions), context-sensitive
Rest of OMDoc → XHTML+RDFa (XSLT)
Document restructuring: e. g. flattening/modularizing
documents
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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3. How to use JOMDoc
Download or check out from http://jomdoc.omdoc.org
Binary distribution
JAR file ready for inclusion into Java projects
executable shell script for validation, rendering, document
restructuring
GUI frontend for rendering
Source code (Eclipse-ready)
Contribute: Trac project management site, mailing list
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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4. JOMDoc’s Notation Definitions
<notation>
<prototype> <!-- the content markup pattern -->
<om:OMA>
<om:OMS cd="arith1" name="divide"/>
<expr name="arg1"/>
<expr name="arg2"/>
</om:OMA>
</prototype>
<rendering> <!-- the presentation markup fragment -->
<m:mfrac>
<render name="arg1"/>
<render name="arg2"/>
</m:mfrac>
</rendering>
</notation>
render(a)
render(divide(a, b)) render(b)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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5. Applications using JOMDoc
TNTBase (→ other talk): versioned XML database with special
services for OMDoc
SWiM (semantic wiki powering http://wiki.openmath.org)
Urs Holzer’s Gemse (MathML editor): Content MathML →
Presentation MathML preview
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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6. JOBAD – Interactive Documents
Now we can render OMDoc documents – let’s make them
interactive!
On-demand adaptation to the user’s presentation preferences
(e. g. brackets, notation)
On-demand information lookup without leaving the document
JOBAD, the JavaScript API for OMDoc-based Interactive Documents
http://jomdoc.omdoc.org/wiki/JOBAD (maintainer: Christoph
Lange)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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7. JOBAD Architecture
integrated backend
external services or data (MMT: logics; TNTBase: lecture notes; …)
ext. repositories
initially
Wolfram|Alpha ontology/ notation generates
Web definitions collection
other CAS
Services
unit converter
proxy renderer
linked data
… others …
menu layers folding/ computation/ definition
mouse keybd visibility rewriting lookup
Client
Modules action
GUI objects Services
Document XHTML+MathML+OpenMath, JavaScript
(dashed lines denote old services being ported or new services being developed)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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8. JOBAD – Customizing Display
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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9. JOBAD – Looking up Information (1)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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10. JOBAD – Looking up Information (2)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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11. JOBAD – Rewriting the Document (Unit
Conversion)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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12. JOBAD – Local Discussion Forums
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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13. TNTBase + JOMDoc + JOBAD Integrated
(JOMDoc rendering XHTML+MathML+RDFa, JOBAD providing
definition lookup and semantic navigation)
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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14. Conclusion
JOMDoc: Java API and command line for validating, rendering,
transforming, etc. OMDoc and other Content Math –
http://jomdoc.omdoc.org
JOBAD: JavaScript-based architecture for integrating services
into interactive documents –
http://jomdoc.omdoc.org/wiki/JOBAD
Lange (Jacobs) Processing and Publishing Content Math with JOMDoc and JOBAD
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