math-bridge architecture
TRANSCRIPT
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Joint Math-Bridge TrainingProgram
Michael Dietrich (DFKI)Math-Bridge Architecture10.07.2015 Saarbrücken
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Component: Apache Tomcat
Purpose: • Webcontainer used to deliver Math-Bridge• Handles requests – Delivers responses• Can also be used for load balancing
Directory/Package_Math-Bridge-Root_/thirdParty/tomcat_Math-Bridge_Root_/conf
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Component: Maverick
Purpose: • Model View Controller Implementation• Handles commands• Selects data model• Delivers corresponding view
Directory/Package_Math-Bridge-Root_/webapps/WEB-INF/maverick.xml_Math-Bridge_Root_/src (Controller & DataModels)_Math-Bridge_Root_/webapps (Views)
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Architecture
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Architecture
Exercises
Presentation
Search
CoreEventsUser
Thirdparty Frameworks
Content
ContentDB
Learner Model
Tutorial Comp.
Web Layer
Client Browser& Tools
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Component: Web Layer
Purpose: • Implements presentations for user• Implements interactions with user
Used Technologies• Apache Velocity (http://velocity.apache.org/)• HTML 5/ JavaScript for user interface presentation• HTML/MathML for formula presentation
Directory/Package_Math-Bridge-Root_/webapps/activemath3org.activemath.webapp
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Component: Core Purpose: • Provides basic system functionalities
• System startup• Loading of configuration• Loading of contents• Building search-index• Initialising of other components
Used Technologies• Apache Tomcat (Webcontainer)• Java (Programming language)• Databases (Apache Derby )
• Core/Learner History/Notes
Directory/Package_Math-Bridge-Root_/data/db (Storage directory) org.activemath.config (classes used for startup)
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Component: Events
Purpose: • Asynchronous communication between components• Subscribe/Unsubcribe/Publish
Used Technologies• Java (Programming language)• XMLRPC
Directory/Packageorg.activemath.events
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Component: ContentDB
Purpose: • (FileBased) Storage and deliverance of Mathematical content• Building Search Index
Used Technologies• Java (Programming language)• Apache Lucene (https://lucene.apache.org/) for search• OMDoc (http://www.omdoc.org/) for Knowledge representation
Directory/Packageorg.activemath.fileBasedorg.activemath.omdocjdom
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Component: Content
Purpose: • Java Representation of Content • Content Management features (Load/Save/Delete/Copy)•
Used Technologies• Java • JDOM (http://www.jdom.org)
Directory/Packageorg.activemath.content
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Component: Presentation
Purpose: • Provide functionalities to transform OMDoc Content into different formats• HTML/MathML/PDF (if LaTeX is installed)
Used Technologies• XSL • Saxon XSLT and Xquery Processor(http://saxon.sourceforge.net/)
Directory/Packageorg.activemath.presentation
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Component: User
Purpose: • Java Representation of a User• Implementaton of User Roles (Learner, Tutor, Author and Admin)• Account Management
Used Technologies• Java
Directory/Packageorg.activemath.user
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Component: Learner Model
Purpose: • Estimation of users current knowledge• Storage of learner history (which items seen/exercises worked with)• Calculation of users progress
Used Technologies• Java
Directory/Packageorg.activemath.learner
Further information on knowledge estimation:• Building a new Learner Model for ActiveMath Combining Transferable Belief
Model and Item Response Theory• Enhancement of ActiveMath's Student Model
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Component: Exercises
Purpose: • Runner for Math-Bridge exercises• Builds internal user model (Keeps track of users results within exercise)• Calculates final achievement• Implements connection to Computer Algebra System
Used Technologies• Java
Directory/Packageorg.activemath.exercises
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Component: Tutorial Component
Purpose: • Compose a course tailored according to users current knowledge
Used Technologies• Java
Directory/Packageorg.activemath.learner
Further information on knowledge estimation:Pedagogically Founded Courseware Generation for Web-Based Learning -- An HTN-Planning-Based Approach Implemented in PAIGOS