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open university support system
Open University Support System

OpenUSS as OpenSource Software for eLearning Support System

by

Revi Kuswara Lofi DewantoKMRG ITBLehrstuhl fuer Wirtschaftsinformatik Bandung - Indonesia und Controlling Universitaet Muenster Germany

contents
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
open source elearning platforms 1
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!
open source elearning platforms 2
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
openuss asp for cal cat 1
OpenUSS: ASP for CAL+CAT (1)
  • ASP (Application Service Provider) model for CAL+CAT (Computer Assisted Learning and Teaching)
    • CAL+CAT (German language): http://www.wi.uni-muenster.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
openuss three dimensions 1
OpenUSS: Three Dimensions (1)
  • Three dimensions
    • Organization
    • Time
    • Subject

Enrollment

openuss component architecture 1
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!
openuss component architecture 2
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.

java2 enterprise edition j2ee 1
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!
java2 enterprise edition j2ee 2
Java2 Enterprise Edition (J2EE) (2)

* Source: Sun Microsystem: http://www.java.sun.com

enterprise java open source architecture ejosa
Enterprise Java Open Source Architecture (EJOSA)
  • Based on J2EE architecture, but using Open-Source products
summary
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
information about openuss
Information about OpenUSS
  • Homepage http://openuss.sourceforge.net
  • Users (OpenUSS Community)http://openuss.sourceforge.net/openuss/user/user.html
  • Developers (SourceForge.net) http://sourceforge.net/projects/openuss
  • Reference installation in Muenster http://www.openuss.de