ConferenceXP integration in IWT

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ConferenceXP integration in IWT

• Integration idea, architecture description,
• use cases

Milano, 2 febbraio 2004
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Overview

• IWT definitions
• Typical user tasks
• Integrated system architecture
• Integration idea
• Proposed solution
• Questions

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IWT definitions

• Learning Object (LO) digital entity used and
  reusable in a learning environment
• Asynchronous event a didactical course where
  students are enrolled to attend LO without live
  interaction with their teacher
• Synchronous event a didactical course with live
  interaction with their teacher
• Didactical material LO content

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Typical Teacher tasks
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Typical Students tasks
Attends live lesson (with interaction)
Attends off-line lesson (without interaction)
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Integrated system architecture
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Integration idea

• An IWT course looks like a Venue of ConferenceXP
• In a synchronous event, teacher and students
  collaborate using CXP tools (client, presenter,
  viewer)
• The exchanged material during the event is saved
  as a LO, for an asynchronous reusing
• The LO becomes an IWT resource

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Proposed solution

• Stream originated by CXP Client in a venue is
  captured from Windows Media Gateway
• the stream is codified and saved as a Windows
  Media file (WMV)
• Teacher at the end of lesson
• uploads WMV file into IWT repository
• selects slides to synchronize for building LO
• inserts LO in a course
• Students enrolled to the course can playback
  registered LO (absent students too)
• slides and WMV file are synchronized by a driver

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IWT course and ConferenceXP Venue

• From IWT course management, teacher and students
  can enter in the specific ConferenceXP Venue for
  that course

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Synchronous event interactions
Students attending lesson
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Learning object building

• Live material is stored and assembled in a
  learning object REUSABLE in synchronous events

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Questions

• Our intention is to store all interaction that
  happens during the synchronous event for an
  offline playback actually we archive a session
  with Windows Media Gateway, when will you release
  the recording system, described like a CXP
  feature?
• Any restriction?
• What interface?

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Questions

• CXP uses Windows Media codec, better than MPEG-1,
  MPEG-2, MPEG-4 e divX is its quality really
  comparable?
• Is it possible to customize CXP teacher and
  students interfaces using web-based technologies?
• How may we compare CXP with other
  videoconferencing systems (Ex. CENTRA Symposium)
  in terms of performance without Internet2?

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Questions

• Are you working in the integration of CXP and
  communication functionalities available in
  Windows Longhorn (Indigo)?
• Can you tell us something about development of
  CXP client interfaces for mobile device?

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Questions

• Is it possible to use CXP for the following
  problem?
• 4 Mbps full duplex LAN
• 11 video 320x240 25 fps latency 120ms (3f) for
  participant view
• 1 video 640x480 25 fps latency 120ms (3f) for
  leader