collaboratory life: support for science over the internet thomas a. finholt & joseph b. hardin...
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Collaboratory Life: Support for Science over the Internet
Thomas A. Finholt & Joseph B. HardinSchool of Information
As we may work?
electronic resources (e.g., the Web) represent a tremendous opportunity
gains for knowledge workers are possible...but not automatic
the challenge: How to maximize the likelihood of beneficial change?
A familiar pattern
More
Time
Performance
Less
hype
raw performance of technology
“real performance”
“reality gap”
Interdisciplinary synergy
Behavioral & Organizational Science
Computer & Communication Science
The User’s Domain
SPARC: Facilitating a revolution in space science
A discipline at a crossroads
Emerging predictive phase requires collaboration (e.g., space weather forecasting)
Globally distributed instruments and scientists
SPARC Environment
globalarrays
archivesdigitallibraries
K-12schoolsundergrad.graduate
theory-experimentclosure
SPARC
Education IntegratedModels
Electronic Workshops
Real-timeCampaigns
SpaceWeatherTestbed
ScienceEnvironment
developmentvalidation
test
Past: remote observatories
Kangerlussauq, Greenland
Impact: access to complementary expertise
Past: access limited by time and distance– single scientists doing experiments– watch but don’t touch
Today: SPARC increases access– diverse expertise is available during SPARC
experiments– students are in a computer-mediated
community of learners
Impact: New experimental paradigms
Past: focus on views from instruments– local data; one person = one instrument
Today: SPARC allows simultaneous views from instruments and models– shift in focus to a global perspective– emphasis on phenomena, not instruments
Generic frameworks for collaboration
Custom-coded solutions– WIRED Java application running within NCSA’s
Habanero environment– Distview (SPARC), Tango - sharing applets– tradeoffs of coding time, download costs, software
revision control, etc…; platform independence; network load (needs testing); feature comparisons (e.g., record and playback); possible integration with emerging systems (e.g., Salamander, GLOBUS)
Off-the-shelf solution– Microsoft NetMeeting
Benefits to Research Community
Allows real time interaction
Extends communication with text and images
Expands access to limited resources
Distributes expertise over distance
NCSA Habanero
DOE-2000 at PNNL - Habanero
Real-Time Collaboration Scientist's Notebook Instrument Control &
Experiment Analysis
VisAD - 3D Java Hablet
Microsoft NetMeeting
Combination of OS and Internet based application Windows 95/NT, Sun & HP Unix (via DC Share), Mac
(via Timbuktu) Variable bandwidth usage, standards-based
– Modems/LANs/ISDN/T-x
– Compliant with data and video conferencing standards (e.g., T.128 & H.323)
Features
– Audio, Video, File Transfer, Text Chat, Whiteboard
– ARBITRARY application sharing Free
WIRED Shared via Habanero
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WIRED Shared via NetMeeting
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Challenges of Next Generation Collaboratories in HEP
Seamless integration of same-time and different-time collaboration
Across different platforms
Drive advanced networking capabilities
Dramatically more scalable
Security and access control
Opportunities Presented by HEP Collaboratories
Matches model of large international collaborations of the future
Promotes team development and integration Provides some capabilities now, during facilities
construction phase Incentivizes cross-platform design, development
solutions Drives increased network capabilities - positive
feedback relationship