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The Deployment of Internet Technology For Distance Learning Application An Experience Learned In Sup

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The Deployment of Internet Technology For Distance Learning Application ... Sew Hoo Lim (citlimsh_at_nus.edu.sg) Hock Heng Soh (citsohhh_at_nus.edu.sg) ... – PowerPoint PPT presentation

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Title: The Deployment of Internet Technology For Distance Learning Application An Experience Learned In Sup


1
The Deployment of Internet Technology For
Distance Learning Application An Experience
Learned In Supporting The Singapore-MIT Alliance
Programme Sew Hoo Lim (citlimsh_at_nus.edu.sg) Hoc
k Heng Soh (citsohhh_at_nus.edu.sg) Centre for
Instructional Technology National University of
Singapore
2
Agenda
  • Background Information
  • Centre for Instructional Technology - CIT
  • Singapore-MIT Alliance - SMA
  • Features of Distance Learning Set-up
  • Lessons Learned and Limitations
  • Q A

3
Centre for Instructional Technology
  • Formed in January 1999
  • Staff from Computer Centre and Centre for
    Development of Teaching and Learning
  • Mission
  • Committed to advancing the purposeful use of new
    media and digital technologies in educational
    programmes in NUS
  • Assessing and evaluating the impact of digital
    technologies to see if it enhances teaching and
    learning

4
Centre for Instructional Technology
  • Key Functional Areas
  • Integrated Virtual Learning Environment (IVLE)
    courseware management system and courseware
    development
  • Conferencing and Streaming
  • Webcast Services
  • Multimedia Services

5
Singapore-MIT Alliance (SMA)Distance Learning
Education - Background
  • A very selective Master/Ph.D. joint program
  • Involves National University of Singapore (NUS),
    Nanyang Technological University (NTU) MIT
  • Launched in July 1999
  • Students undergoes initial orientation in
    Singapore, then 1 month in MIT followed by
    continuation of program in Singapore
  • Students earn singular degree with indigenous
    registered institution

6
SMA- Background
  • Programs Offered by SMA
  • Advanced Materials (AM) - since July 1999
  • High Performance Computing for Engineered Systems
    (HPCES) - since July 1999
  • Innovation in Manufacturing Systems and
    Technology (IMST) - since July 2000
  • Chemical Engineering - begin in July 2001
  • Computer Science - begin in July 2001

7
Features of Distance Learning Set-up
  • Video Conferencing CODEC
  • ISDN versus IP-based Conferencing
  • H.320 and H.323 CODEC
  • Picturetel Concord 4500 (ISDN) PT210
  • Picturetel PT960 / PT970 - PC based
  • Polycom Viewstation 512 - Appliance
  • Tandberg 6000 MP - Appliance

8
Features of Distance Learning Set-up
  • Video Conference - Link-up Mode
  • Primary - IP
  • 1st backup - ISDN
  • 2nd backup - IDD (voice)

9
Features of Distance Learning Set-up
  • Application Sharing
  • Use of Microsoft Netmeeting
  • Connect Through Internet Link
  • Provide Interactivity
  • Low Bandwidth Requirement
  • Fairly Reliable

10
Features of Distance Learning Set-up
  • Dual Screen Operation Mode 1
  • AV conferencing screen
  • Data sharing screen

Projector 1
Projector 2
Application sharing via netmeeting via IP from
lecturer presentation console to far end
auditorium
Video via IP
11
Features of Distance Learning Set-up
  • Dual Screen Operation Mode 2
  • AV conferencing screen
  • Data sharing screen

Projector 1
Projector 2
Application sharing via netmeeting via IP from
lecturer presentation console to far end
auditorium
Lecturer document camera video via IP
12
Features of Distance Learning Set-up
  • Line of Sight and Sense of Presence
  • Classroom to classroom environment
  • Necessary during Q A session
  • Automatic and fast switching of cameras (within 1
    to 2 seconds)
  • Press-to-talk versus voice-activated
    microphone system

13
Features of Distance Learning Set-up
  • Automatic Tracking Camera
  • Allow lecturer to move freely during lecture
  • Automatic lecturer tracking camera to maintain
    continuous presence to far-end
  • Infra-red versus color-coded tracking system

14
Features of Distance Learning Set-up
  • Plasma Screen - Tracking Camera

15
Features of Distance Learning Set-up
  • Press-To-Talk
  • Microphones

Auditorium
Smart Classroom
16
Features of Distance Learning Set-up
  • Dual Projection System

17
Features of Distance Learning Set-up
  • Automatic archival of distance learning lectures
    onto video server for future reference and
    revision by students

18
Features of Distance Learning Set-up
  • Archival Process
  • Video encoding done at where lectures are
    conducted
  • Encoded lectures are transferred (ftp) to remote
    sites
  • MIT NUS maintain its own video servers
  • Video are encoded in RealVideo format at 300 kbps
    and 12 fps
  • One hour of encoded video 100 Mbytes

19
Distance Learning Configuration -- The SMA
Experience --
MIT Auditorium
Student access via web for revision
Online digitization onto video server
NUS Auditorium / SMART Classroom
Video Server
View video
20
SMA Network Configuration
21
SMA Distance Learning Lessons Learned
  • Synchronous Teaching / Learning
  • A challenge to maintain Line of Sight and Sense
    of Presence in large classroom
  • Sustained audio quality a challenge (noise
    breakups)
  • Reliability of broadband network international
    leased circuit
  • Delay in camera tracking system poses problems
    for Q A sessions improvements using
    push-to-talk system
  • Secondary communication channels for inter-team
    session monitoring to ensure rapid problem
    resolution

22
SMA Distance Learning Lessons Learnt
  • Pedagogical Issues
  • Faculty needs to understand technical limitations
  • Adaptation required
  • Conducting an effective Q A session is
    challenging
  • Backup connectivity activation disrupts flow of
    lessons

23
SMA Distance Learning Lessons Learnt
  • Support Issues
  • Requires well understood inter-team operational
    protocols procedures
  • Inter-technical team building essential
  • Core technical staff available on mobile/beepers
  • 2-men operation team ( one experienced technician
    1 student helper)

24
Limitations
  • High speed switched networks
  • High-end platforms preferred
  • WAN connectivity bottlenecks costs
  • Sophisticated operations set-up
  • Evolving technology
  • Operational logistics

25
Video Conferencing Linkup Costing
Premium service from Singaren via Internet2
estimated at S75 per 384 kbps per hour ISDN
from Singtel estimated at S300 per hour for
linkup to MIT ( USA ). Cost varies for other
countries.
26
End of PresentationThank YouURL
Linkshttp//www.nus.edu.sg/http//www.cit.nus.
edu.sg/http//www.sma.nus.edu.sg/
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