Might be more interesting to see what it would take to do a peer-to-peer response with contract network negotiations. If someone has an interest, it might be a good idea to document with UML sequence diagrams.
Bruce B. On Sun, Jan 15, 2012 at 8:14 PM, Mattmann, Chris A (388J) <[email protected]> wrote: > Hi BW, > > On Jan 15, 2012, at 9:51 AM, B W wrote: > >>> >>> Ok. Great! Thx. >> But, no matter what concrete message layer substrate we choose the >> synchronous nature imposed by OODT's architecture still exists. > > +1, unless we simulate event-based delivery (via polling), as is what > happens in the OODT Workflow Manager. > >> >> Which I guess highlights the importance of advanced planning of reusable >> scientific work flows that can be automated. > > +1. > >> >> This is a mitigation tactic of the synchronous nature through staging and >> checkpoints for fault tolerance and recovery? > > +1, you got it, it certainly helps with staging and with fault > tolerance/checkpointing. > > Cheers, > Chris > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Chris Mattmann, Ph.D. > Senior Computer Scientist > NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA > Office: 171-266B, Mailstop: 171-246 > Email: [email protected] > WWW: http://sunset.usc.edu/~mattmann/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Adjunct Assistant Professor, Computer Science Department > University of Southern California, Los Angeles, CA 90089 USA > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >
