data collaboration mary trauner georgia institute of technology internet2 commons site coordinator...
TRANSCRIPT
Data Collaboration
Mary TraunerGeorgia Institute of Technology
Internet2 Commons Site Coordinator TrainingMarch 23, 2004Indianapolis, Indiana
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What is Data Collaboration?
Data Collaboration Standards
Approaches to Data Collaboration
Section Overview
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• A “third stream” in addition to audio and video
• A shared electronic document
• A view of an electronic workspace
• A shared interface to a running application
• A one-time, impromptu or planned engagement
• A persistent, group electronic workspace
• Synchronous or asynchronous
What is Data Collaboration?
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Classroom: Shared whiteboards, slides, browsers; chats and polling/quizzing; curriculum planning, course design and repositories
Administration: Proposals, budgets, status reports
Research: Modeling/simulation, visualization, remote control
Medicine: Collaborative discussions, remote diagnosis
Typical Uses
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• Whiteboard• Chat or Instant Messenger• Shared Documents (Still
Image)• File Transfer• Shared Applications• Remote Control• Pointers• Surveys, Polling, Quizzing• Recording• Telephone and/or VC
Bridges• Video Streaming• Animation Support
• Chair Control• Scheduling and Timers• Agendas for Meetings,
Classes• Announcement Boards• Participant List, Status panels• Management Console• Directories• Logging, Tracking• Security
- Authentication- Encryption
• Shared Repository, Meeting/Class Archives
Features & Functions
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T.120 Standard Layered Services
Common Protocol -
Network Independent
Protocol Data Units
P2P Communications• Standard Applications
- Still Image and annotation- Multipoint binary file
transfer- Generic application
template• Non-standard Applications
Data Collaboration Standards
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Approaches
Remote Data Display
Interactive Data Collaboration
Shared Persistent Virtual Workspaces
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With a projected image:
• Share a PowerPoint or other presentation
• Share display of web browsing
• Demonstrate an application
• Provide user assistance or training
• Share whiteboard sketches and text
Remote Display
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Methods
• Scan converters
• Advanced proprietary solutions
Band
• In-band (on a video channel)
• Out-of-band (on an independent data
channel)
Remote Display
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Scan converters
–Converts a high resolution PC RGB signal to a lower resolution composite video signal
–Cheap and easy to use
–Fair to poor resolution (no small fonts)
–Uses a (the) main video window (in-band)
Remote Display
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Proprietary solutions - Polycom Visual
Concert FX
–Local RGB video from PC, sound from mic to far-side video or projector/display
–Easy to use but requires high-end video conferencing appliances
–High quality, native resolution–Uses a separate window (out-of-band)
Remote Display
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Proprietary solutions - Polycom SNAP!
–Transmits JPEG
snapshots of desktop or
application to a Polycom
appliance–Free and relatively easy
to use –Low resolution like scan
converter–Windows only
Remote Display
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Share a desktop or a window to:• Co-browse the web• Jointly work on whiteboard diagrams• Jointly update a document
Share a running application to:• Jointly steer its operation• Provide support or training on its use• Troubleshoot problems• Use valuable, limited resources
Define a meeting space
Interactive Data Collaboration
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Polycom WebOffice
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Polycom WebOffice
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Polycom WebOffice
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Polycom WebOffice
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Polycom WebOffice
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Wave3 Session
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Elluminate vClass
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Elluminate vClass
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Elluminate vClass
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Elluminate vClass
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Elluminate vClass
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Elluminate vClass
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Elluminate vClass
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Persistent Virtual Workspace
With remote collaborators, in a virtual workspace:
–Use capabilities of interactive data collaboration
–Collaborate over time on a project or activity
–Maintain the work record: documents,
discussion, digital objects, notes, outlines
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Groove
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Bandwidth requirements
Browser based and centralized tools may be influenced
more by network latency and virus problems/DoS attacks.
Sustained workflow
Newer tools have features that support persistent
environments as well as ad-hoc meetings.
Availability
Commercial tool pricing for general (mass) use is
probably an obstacle. Project pricing may be reasonable.
Closing Remarks
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Methodology
While many use open standards for individual
elements, overall architectures and interfaces
tend to be unique and even proprietary.
Perspective
Venue or perspective must be chosen: desktop,
meeting room, classroom, others.
Ease of use
Tools are not always intuitive.
Substantial training may be required.
Closing Remarks
