GNI Project

 
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Projects related to the GNI Project

Otago Open Source Software Initiative

The Otago Open Source Software Initiative is a Department of Information Science project that will provide advice and support to schools in New Zealand.  The group will be involved in the testing and development of a range of open-source software technologies that have the potential to reduce IT operational costs, leverage productivity and enable schools to "work smarter" through the appropriate use of new technologies.

Background

Open-Source software has been around since the 1980s but for most of that time it has been widely viewed as the domain of hardcore IT types and not ready for general consumption.  This view is reflected in the fact that while open-source products power many of the servers delivering content on the Internet, open-source software has not experienced the same level of take-up on the desktop PC.

This situation appears to be changing however.  More companies and organisations, including large government departments such as the US Department of Defence and the NZ Ministry of Justice, have become vocal proponents of open-source software solutions.  They claim that open-source software has a lower total cost of ownership, has a more rapid development process and is more secure than proprietary software.  Their reasoning for greater security is that with the source code being open for all to view, security holes are found and plugged before they are exploited.

The main issue holding back schools and small businesses from moving to open-source solutions on the desktop  is the often limited support and documentation that makes much open-source software a difficult proposition to maintain and manage.  This lack of documentation and support often results in the running cost of open-source software, i.e. the costs associated with lost productivity due to downtime and the cost of in-house technical-staff time required to support the software, quickly outstripping the initial purchase price of a commercial alternative.

It is this situation that has lead the Department of Information Science to establish the Open Source Software Initiative to support the take up of open source software by schools by using its expertise to develop standardised, tested software bundles that “work” and to provide a support forum with “expert advisors” to assist in the identification of appropriate open-source solutions.

More Information

More information about this initiative will be provided soon at: http://www.ossi.otago.ac.nz/

 

Exploration of Virtual World Technologies

We are currently exploring various research questions surrounding virtual world technologies, such as Second Life and OpenSim.

 

TELE/SENG 480 student topics for 2008

The TELE480 and SENG480 papers are a detailed study of a topic in telecommunications or software engineering of interest to the research community. A written report, which will include a suitable literature review, will be the principle output of the course.

Current topics associated with the GNI project are:

1: Performance issues for a VoIP application in a clustered environment. More...

2: Java toolkit for a SIP telephony application. More...

3: Performance comparisons of OpenSim on Debian-CGL and Windows. More...

4: Monitoring social interactions in online virtual worlds. More...

 

Social Awareness Services (SAS) project

Stephen Cranefield, Martin Purvis, Noria Foukia, Hailing Situ

This project will study the adaptation of social awareness techniques from multi-agent systems (MAS) research to form generic reusable services on the Web and in next generation communication networks.

More...

 

cAR/PE SIP call module

Holger Regenbrecht, Michael Wagner, Hailing Situ

CarpeSipCall is a SIP-protocol based VoIP-calling component for the 3D video conferencing system cAR/PE!.
It is implemented as a standalone application to which the cAR/PE! application connects at run-time via TCP.
The cAR/PE! architecture is implemented as a client server system where several cAR/PE! stations connect to a central communication server (dbcrb) for registration and interaction messaging. Each cAR/PE! application as a Call-Module component which spawns a VoIP-Process calling a central MCU (multipoint communication unit).
The existing architecture was IAX protocol based and used a custom multipoint conferencing solution (MCU).
The new architecture is able to use the SIP-protocol to register with a SIP-registration-service as well as with a SIP-proxy-service.
The current solution uses a JAIN-SLEE based setup for proxy and registration.
Since there is no java-based, JAIN-SLEE integrated MCU solution available, the setup uses a dedicated asterisk-PBX-server (www.asterisk.org) with a meet-me conference subsystem.

 
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