The Sakai VRE Demonstrator Rob Crouchley, Adrian Fish and Miguel Gonzalez E-Science Centre, and Collaboratory for Quantitative e-Social Science, University of Lancaster Rob Allan and Xiaobo Yang E-Science Centre, CCLRC Daresbury Laboratory Mark Baker and Rahim Lakhoo Distributed Systems Group, University of Portsmouth Matthew Dovey, Stuart Yeates, Graham Kline and Francisco Pinto
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The Sakai VRE Demonstrator Rob Crouchley, Adrian Fish and Miguel Gonzalez E-Science Centre, and Collaboratory for Quantitative e-Social Science, University.
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The Sakai VRE Demonstrator
Rob Crouchley, Adrian Fish and Miguel GonzalezE-Science Centre, and Collaboratory for Quantitative e-Social
Science, University of Lancaster
Rob Allan and Xiaobo YangE-Science Centre, CCLRC Daresbury Laboratory
Mark Baker and Rahim LakhooDistributed Systems Group, University of Portsmouth
Matthew Dovey, Stuart Yeates, Graham Kline and Francisco Pinto
Research Technology Services, University of Oxford
• Sakai is open source, it’s the hosting framework of choice for VLE and VRE development in the USA;
• Big investment from Mellon Foundation and Ivy League Universities ($6.8M);
• Close collaboration with uPortal developers• Makes use of OKI OSIDs and latest Java technology• The Sakai Tool Portability Profile (TPP) -
Describes how to write tools and services so that they are portable across Sakai systems.
Sakai Roadmap
• Sakai 1.0 - basic collaborative system - suitable for small pilots (June 2004)
• Sakai 1.5 - basic collaborative learning system - suitable for significant pilot’s, (Dec 2004)
• Sakai 2.0 - collaborative learning system - suitable for significant production deployments, (June 2005), – 2.1 release due Nov 2005 will have a WSRP producer.
New Sakai VRE Tools : Demos Available from Lancaster CoE
Booth during Coffee Breaks
• Blog
• Whiteboard
• Resource Searcher
• Audio and Video Conference
• Shared Display
Blog• A blog is an online journal. They can be considered as limited
online publishing systems. They are commonly used to store development notes and can be searched by anybody with access rights.
White Board
• The whiteboard is a distributed sketchpad and uses Narada Brokering to route drawing events to interested participants. Each authenticated worksite user can start sketching and will receive sketches from others.
Resource Searcher
• A simple, but effective, way of searching for documents amongst the resources attached to the current worksite.
Audio and Video Conference• Worksite user's can create a conference (using the ConferenceService) and
add participants from the pool of registered worksite users. The conference starts immediately and participants join as they login and start the tool. The conference tool uses RTP and applets to capture/playback audio and video. Uses ports>8000.
Shared Display• With this tool, worksite users can work on a document collaboratively.• One user acts as a producer of a display and simply drags a cursor over ANY desktop application
they have running. The producer applet then starts capturing the application image and sending it to a JMS topic hosted on the Narada broker. Any other interested worksite users can then consume the display using the consumer applet. When used in conjunction with the audio tool the shared display can make collaborative editing (even programming) relatively painless.
WP3: Sakai Demonstrator and Services
Production Server:• Sakai 2.0 on IBM BladeCenter server at DL with Oracle
9i on NGS node at RAL. Moving to 2.1 with WSRP producer soon.
Development:• Sakai 1.51 or 2.0 with MySQL/Oracle at other sites.
Dissemination and Status:• Current Web site is at http://www.grids.ac.uk/Sakai• List of tools and status is at http://www.grids.ac.uk