Open University Support System

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Open University Support System
OpenUSS as OpenSource Software for eLearning
Support System by Revi
Kuswara Lofi
Dewanto KMRG ITB
Lehrstuhl fuer Wirtschaftsinformatik
Bandung - Indonesia
und Controlling Universitaet Muenster

Germany

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Contents

• Open-Source eLearning platforms
• Open University Support System Architecture
• Application Service Provider for Computer
  Assisted Learning und Teaching
• Three Dimensions (3 in 1)
• Component Architecture
• Java2 Enterprise Edition and Enterprise Java Open
  Source Architecture
• Future Development and Discussion

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Open-Source eLearning Platforms (1)

• Organizations
• http//www.opensource.org
• http//www.campussource.de
• Open-Source ! No Licence!
• GPL (General Public License) as licence model
• Changes must be Open-Source
• Extensions must be Open-Source
• Only for Open-Source software suitable
• Component-oriented software development LGPL
  (Lesser General Public License) better!

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Open-Source eLearning Platforms (2)

• Trends eLearning infrastructure as
  commodity-ware?
• OKI (Open Knowledge Initiative)http//web.mit.edu
  /oki
• Many choices from commercial and Open-Source
  eLearning Platforms
• Commercial BlackBoard, WebCT, CampusPipeline,
  ...
• Open-Source ClassWeb, ShadowNetworkspace,
  Manhattan Virtual Classroom, many in
  CampusSource, many in SourceForge.net, ...
• Technology choices
• Script languages PHP, Perl, ASP
• Java Java2 Standard Edition, Java2 Enterprise
  Edition, Java2 Micro Edition
• The rest CGI, ISAPI, NSAPI, Apache modules

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OpenUSS ASP for CALCAT (1)

• ASP (Application Service Provider) model for
  CALCAT (Computer Assisted Learning and Teaching)
• CALCAT (German language) http//www.wi.uni-muens
  ter.de/aw
• ASP main organization http//www.aspindustry.org
• Comparable concept SourceForge
  (http//sourceforge.net) for Open-Source software
  projects
• Management of many institutions within one
  instance universities (Uni), schools (Sch),
  training companies (Trc) and communities (Com)
• Three roles
• OpenUSS provider administrators
• OpenUSS user lecturers, teachers, trainers,
  moderators
• OpenUSS user students, pupils, workers,
  participants

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OpenUSS ASP for CALCAT (2)
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OpenUSS ASP for CALCAT (3)
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OpenUSS Three Dimensions (1)

• Three dimensions
• Organization
• Time
• Subject

Enrollment
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OpenUSS Three Dimensions (2)
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OpenUSS Component Architecture (1)

• Foundation Components
• Domain-oriented (student, lecturer, etc.)
• Extension Components
• Domain independent (discussion forum, chat,
  mailinglist, etc.)
• Easy to extend the functionalities of OpenUSS
  with help of Extension Components!

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OpenUSS Component Architecture (2)
Source Bensberg, F., Dewanto, L.
Entwurfsmuster bei der Implementierung von
OpenUSS, Teil 1 Mustergültig, In Java Magazin
12.01, S. 70 - 74.
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OpenUSS Component Architecture (3)
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Java2 Enterprise Edition (J2EE) (1)

• Components, APIs and rules for complex software
  development
• Fully object-oriented
• Multi-tier architecture
• Presentation layer
• Business Logic layer
• Data layer
• At the beginning complex, but re-use is easy to
  carry out!

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Java2 Enterprise Edition (J2EE) (2)
Source Sun Microsystem http//www.java.sun.com
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Enterprise Java Open Source Architecture (EJOSA)

• Based on J2EE architecture, but using Open-Source
  products

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Summary

• J2EE component-oriented software development
• EJOSA mature and stable architecture, wide
  support from the Open-Source communities
• Open-Source developer for J2EE difficult to find
  -(
• Future development
• Integration with other Open-Source Java
  components MILESS (digital library), Whiteboard
  applications, Twiki component
• Further development of other client types PDA
  (Personal Digital Assistant), WAP (WML), i-Mode
  (cHTML), VoiceXML
• Influence for the future of OpenUSS
• Users
• Developers

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Information about OpenUSS

• Homepage http//openuss.sourceforge.net
• Users (OpenUSS Community)http//openuss.sourcefor
  ge.net/openuss/user/user.html
• Developers (SourceForge.net) http//sourceforge.n
  et/projects/openuss
• Reference installation in Muenster http//www.ope
  nuss.de