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Home -> Community -> Usenet -> comp.databases.theory -> Re: Massively distributed data
"Dawn M. Wolthuis" <dwolt_at_tincat-group.com> wrote in message
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> > "Dawn M. Wolthuis" <dwolt_at_tincat-group.com> wrote in message
> > news:c7s5um$7nk$1_at_news.netins.net...
> > > I think this is a fascinating question and maybe some of you will
agree
> > and
> > > will have suggestions. I sat next to Jim Waldo from Sun at a lunch at
a
> > > Jini Community Conference in Boston earlier this year. He was talking
> > about
> > > medical information coming directly from people in some way. The idea
> > would
> > > be to have information about the health of an individual come from
their
> > > body. This was still in the stage of formulating the problem
statement,
> > so
> > > the rest is just related to my own reflections on the problem.
> >
> > > Possible simple scenario:
> >
> > I hope this would not be possible :-)
> > OK, let's figure that somehow there is data from individuals with some > ability to push itself and/or be accessed. Remove the need to considerthe
But this is a very important issue and cannot be easily removed.
> Yes, you are right that at any point of interest, you would want to > take/have a snapshot of all of the data attributes.
If the data is "massively distributed" how could this be done ?
> Now, what about the fact that this could BE a database, but the natural > database (and this is where my question is) seems to be one where you can > navigate from node to node -- individual values, rather than one where you > treat all values of a "relation" as a set, using set operators and all.If
It doesn't matter how it look like, it only matter what you can do with it.
About "navigation from node to node" :
1) What is a "node" ? An "atomic" piece of data, a set, a graph ?
2) For "navigation from node to node" I suppose you have "links"
What is a "link" ? An "atomic" piece of data, a set, a graph ?
3) What is "navigation" ?
If you need to "navigate" from a "start" "node" A to a "destination" "node"
B and there is no direct "link" from A to B (or there are several links) you
need to specify the path from A to B. How would you do this ?
In what way "navigation" differ from the relational operators ?
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