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Published byAllen Porter Modified over 9 years ago
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Collaboratory Life: Support for Science over the Internet Thomas A. Finholt & Joseph B. Hardin School of Information
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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?
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A familiar pattern More Time Performance Less hype raw performance of technology “real performance” “reality gap”
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Interdisciplinary synergy Behavioral & Organizational Science Computer & Communication Science The User’s Domain
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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
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SPARC Environment
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Past: remote observatories Kangerlussauq, Greenland
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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
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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
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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
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Benefits to Research Community Allows real time interaction Extends communication with text and images Expands access to limited resources Distributes expertise over distance
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NCSA Habanero
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DOE-2000 at PNNL - Habanero Real-Time Collaboration Scientist's Notebook Instrument Control & Experiment Analysis
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VisAD - 3D Java Hablet
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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
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WIRED Shared via Habanero 0 100 200 300 400 500 600 10:1210:1310:14 Time Kilobits per Second Total vat (audio) vic (video) Habanero
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WIRED Shared via NetMeeting 0 200 400 600 800 1000 1200 1400 10:4410:4510:4610:47 Time Kilobits per Second Total vat (audio) vic (video) 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
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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
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