Platine Fossa

PLATINE Synchronous and distributed

cooperative platform for e-working PLate-forme de Télé-Ingénierie

coopérative synchroNe distribuéE

Véronique Baudin E-mail: [email protected]

LAAS-CNRS PLUME-RELIER

Agenda

1. PLATINE description 2. Use case demonstration 3. Technology transfer

– What – Why – Which licence

4. Learned lessons – Unfortunate aspects – Nice surprises

5. Conclusion November 17 2009 2 FOSSa - Grenoble

1. PLATINE description

• Offers a lot of mechanisms that can be used in different contexts: e-learning, co-design, cooperative work, …..

• Software platform used to support remote collaboration among users.

• Two main kinds of interactions can be found within collaborative groups: – asynchronous collaboration, that does not require the group

members to be present at the same time; – synchronous collaboration, where remote users work at the same

time. • PLATINE is mainly devoted to synchronous collaboration. • Developed since 1998, used and deployed in European

and French projects.

November 17 2009 3 FOSSa - Grenoble

1. PLATINE description

• 3 kinds of components – A module for off-line session preparation – Asynchronous session state display with an “asynchronous” chat – Synchronous components

• a synchronous session state display • a multi user visioconference • a multipoint chat • an application sharing • a shared whiteboard • a session manager

• A PLATINE session is composed of – an asynchronous phase, – a synchronous phase.

• Some roles can be defined for one session, and the chairman attribute can be assigned to some roles.

• The chairman can manage the synchronous phase of a session.


1. PLATINE description • Technical characteristics

– Mainly developed using JAVA – External components:

• VNC for application sharing • VIC and RAT alternatives for the visioconference tool

– Automatic deployment for session participants • JAVA WebStart

– Multicast visioconference • Optional reflector module


1. PLATINE description • Requirements

– Hardware: Pentium (or Centrino) PC minimum 1Ghz, 512 Mbytes RAM

– Input/output multimedia devices: webcam, microphone, headset, ... correctly configured and installed. These devices should be recognized by jmstudio (from jmf2.1.1e)

– Operating Systems: Windows XP , Fedora , MacOSX

– Java : • You can use jre 1.4.2_10 version (less than jre1.5.0 version) . • On your WebStart install, you have to verify the selected jre version • 1.4.2-11 for the Java Runtime Environment (see item J2SEv1.4.2_11) • 2.1.1e for the Java Multimedia Framework


2. Use case demonstration

• Lab@Future (IST project 2002-2005) objectives: – The experiments realized correspond to learning

cases where students gain knowledge by themselves. – Teachers are present in the same student session to

answer to students and to remotely help them in case of difficulty.

– Difficulties appear in handling the experiment specific tool but also while resolving the problem.

• Experiment from the mechatronics domain using the FluidSim software


2. Use case demonstration • E-learning use case

German FluidSim expert-teacher

French teacher office LAAS ground floor

French students

Multimedia room

LAAS first floor


2. Use case demonstration • Deployed architecture



• Specific tools – FluidSim (Bremen) – Mixed reality platform

(Bremen)

• Generic communication components – Vic, Rat – VNC server (Bremen) – Session State Display – VNC client


Admin interface to session definition

1

2

3

6

7

5

4


User Interface for asynchronous phase

User connection to a selected session


User Interface for synchronous phase Specific URL for sync phase

WhiteBoard

JVisioConf

Application Sharing (VNC)

Synchronous Session State

Display


3. Technology transfer • Observations

• PLATINE is a prototype developed in a research lab in order to demonstrate new transport protocols and new cooperative protocols

• No human ressources apart from research projects • We have not found any company to support the industrial

completion of the prototype


3. Technology transfer • Which result can be transferred ?

• Some PLATINE components for academic or industrial partners

• Why this choice ? • In the fields of network transport protocols and of computer

supported cooperative work (CSCW), the researchers need communicating components

• PLATINE components can be used, so we decide to share them easily

• Which licence ? • CeCILL-B because it « follows the principle of the popular

BSD license and its variants (Apache, X11 or W3C among others). In exchange for strong citation obligations (in all software incorporating a program covered by CeCILL-B and also through a Web site), the author authorizes the reuse of its software without any other constraints.. » http://www.cecill.info/index.en.html


3. Technology transfer • PLATINE website

• Source code for the whole PLATINE • Users guides: install and admin and user guidelines


http://www.laas.fr/PLATINE

3. Technology transfer • PLATINE on PLUME-Feather (RELIER project)


http://projet-plume.org/en/relier/platine-0 http://projet-plume.org/relier/platine

4. Learned lessons • Unfortunate aspects

– Not enough time and human ressources at LAAS to complete our platform

– No community created – Not enough time to support external projects

• Tokushima University (Japan): cooperation with a phd student (2004-2006)

• Lakehead University (Canada): cooperation with a teacher after the ED-MEDIA Conference 2005 (2005-2006)

November 17 2009 FOSSa - Grenoble 19

4. Learned lessons

• Nice surprises – A very good entry point for new research projects:

• 2002-2005: IST Lab@Future using all PLATINE components + automatic deployment with JavaWebStart

• 2006-2008: IST Sat6 using JVisioConference + SIP • 2004-2008: IST EuQoS using JVisioConference + QoS • 2007-2010: ITEA UseNET using Jchat + automatic

deployment for mobile phones (J2ME, OSGi, Android, …..) – Always available, interesting for a lot of people:

• 892 reads of French RELIER card since 09 2008, • 299 reads of English card since 04 2009


5. Conclusion

• PLATINE : an enriching experience from both technical and human point of view

• A nice way to introduce me in RELIER project


Tokushima University (Japan) 2004

Tokushima - 2006

LIRM Tokyo – Toulouse – 05 2005

Santa-Catarina University Brasil –

Toulouse 06-2005

Questions ?


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