Basic HTML version of Foils prepared April 4 1999

Foil 68 How are Objects Used Collaboratively?

From The Document Object Model - Universal Access - Other Objects - CORBA XML Jini JavaScript etc. Tango Seminar to DoD Modernization MSRC -- April 6 1999. by Geoffrey C. Fox
1 Some sort of activity involves interactions between objects and/or objects and individuals (which can be thought of as objects as well if you want)
2 Interaction can be synchronous as when individuals talk to each other; parallel program components exchange MPI messages
  • Objects or object properties are shared at same time
3 Or asynchronous when sharing is done at different times
4 I post a web page and you look at it later is basic asynchronous sharing model while writing on a blackboard is hallowed synchronous model in teaching
  • other areas are similar
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