Event broadcasting (MIMD model of collaboration): each workstation runs its own copy of application.
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(A) Virtual instance: all events shared (collaboration transparency)
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(B) Independent data views: some events shared
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Examples: Habanero (NCSA - B), Java Collab. Toolset (Old Dominion - A ), ProMondia (Univ. of Nurenberg - B), DISCIPLE (Rutgers University - A/B), TANGO (NPAC - A/B)
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Disadvantages: new category of SW, difficult to implement and issues not yet understood
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Advantages: infinitely flexible and adaptable, generate little network traffic, perfectly fit Web/Java paradigm, can implement security, can support asynchronous collaboration....
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