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Regarding the article linked to in the post Reed forwarded, in particular
page five:
http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=337&page=5
The discussion is how databases fit with the "lessons learned from the
web". Since VOS is a database and access language of sorts, I'd like to
respond to some of the points brought up in the article.
1. Are simple relaxed text formats and protocols supported?
Yes and no. At present, the XML message format has been retired in favor
of an efficient binary format. It may one day stage a remarkable comeback,
since XML-over-TCP is a hell of a lot easier for other people to
interoperate with than Binary-over-VIP.
3. Do databases optimize caching when it is OK to be stale?
Caching is an important area which has yet to be addressed in VOS. The
article makes an interesting point that when data is tagged with
time-to-live information, it becomes much easier to determine what data
changes infrequently and/or is permitted to be slightly out of date.
This could be a useful feature to build into VOS, enabling prioritization
in determining what elements of a local cache may or may not need to be
updated. Certain scene elements such as texture data can be stale without
causing any problems.
4. Do databases let schemas evolve for a set of items using a bottom-up
consensus/tipping point?
5. Do databases handle flexible graphs (or trees) well?
In VOS, absolutely. These are both very basic design principals in VOS.
Vobjects are easily evolved by attaching new vobject types, and building
trees and graphs is the design purpose behind the parent-child
relationship between vobjects.
[ Peter Amstutz ][ [EMAIL PROTECTED] ][ [EMAIL PROTECTED] ]
[Lead Programmer][Interreality Project][Virtual Reality for the Internet]
[ VOS: Next Generation Internet Communication][ http://interreality.org ]
[ http://interreality.org/~tetron ][ pgpkey: pgpkeys.mit.edu 18C21DF7 ]
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