View
219
Download
1
Category
Tags:
Preview:
Citation preview
Data Collaboration
Mary TraunerGeorgia Institute of Technology
Internet2 Commons Site Coordinator TrainingMarch 23, 2004Indianapolis, Indiana
2
What is Data Collaboration?
Data Collaboration Standards
Approaches to Data Collaboration
Section Overview
3
• 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?
4
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
5
• 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
6
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
7
Approaches
Remote Data Display
Interactive Data Collaboration
Shared Persistent Virtual Workspaces
8
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
9
Methods
• Scan converters
• Advanced proprietary solutions
Band
• In-band (on a video channel)
• Out-of-band (on an independent data
channel)
Remote Display
10
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
11
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
12
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
13
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
14
Polycom WebOffice
15
Polycom WebOffice
16
Polycom WebOffice
17
Polycom WebOffice
18
Polycom WebOffice
19
Wave3 Session
20
Wave3 Session
21
Wave3 Session
22
Wave3 Session
23
Wave3 Session
24
Wave3 Session
25
Wave3 Session
26
Wave3 Session
27
Elluminate vClass
28
Elluminate vClass
29
Elluminate vClass
30
Elluminate vClass
31
Elluminate vClass
32
Elluminate vClass
33
Elluminate vClass
34
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
35
Groove
36
Groove
37
Groove
38
Groove
39
Groove
40
Groove
41
Groove
42
Groove
43
Groove
44
Groove
45
Groove
46
Groove
47
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
48
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
49
Mary Traunermary.trauner@oit.gatech.edu
Recommended