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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Complex Systems [was: Ontologies vs Schemas vs Transformat
 Ah, interesting - I'll have to check this out. I was thinking in terms of chaos theory, as chaotic systems are "mathematically deterministic but nearly impossible to predict" [1]. Thanks for the clarification. Joe [1] http://www.mathjmendl.org/chaos/#intro "Roger L. Costello" wrote: > > Hi Joe, > > No, I really did mean to say non-deterministic. (My understanding is) that > complex systems may appear non-deterministic, but there are underlying > patterns that once recognized will allow you to predict the behavior. Until > you understand those underlying patterns it appears non-deterministic. > /Roger > > Chiusano Joseph wrote: > > > <Quote> > > A complex system is one that has lots of parts, which interact, > > and the system behaves in a seemingly non-deterministic fashion > > </Quote> > > > > Roger, I think you meant to say seemingly *deterministic* fashion... > > > > Kind Regards, > > Joe Chiusano > > Booz | Allen | Hamilton > > > > "Roger L. Costello" wrote: > > > > > > Hi Mike, > > > > > > Mike Champion wrote: > > > > > > > But how about the messy real world most of us must > > > > operate in, where there is an intent to deceive > > > > (spammers, virus writers, software companies with > > > > patents on common sense, politicians starting wars [or > > > > questioning the definition of "is"], ad nauseum)? How > > > > about in pop culture contexts where meanings of words > > > > are changed literally for the fun of it? > > > > > > You make excellent points. I will offer two comments: > > > > > > 1. In the RDF Primer are several examples of companies that are > > > currently using RDFS ontologies. Shelley Power's book on RDF also has > > > examples. > > > > > > 2. Recently I have been doing some reading on "complex systems". This > > > is a new, highly interdisciplinary science that has its roots in Chaos > > > Theory. A complex system is one that has lots of parts, which interact, > > > and the system behaves in a seemingly non-deterministic fashion. A > > > example of a complex system is the stock market - there are many parts, > > > and one part (I think they call it an affector) can impact remote > > > parts. The complex systems people distinguish between a complex system > > > and a complicated system. An automobile engine is an example of a > > > complicated system - if you understand all its parts then you can > > > predict exactly how it will behave. This is not a complex system. A > > > colleague defined a complex system as "a system that has dynamic > > > complicatedness". > > > > > > As I read your words it occurred to me that what you are really talking > > > about is a complex system. As I learn more about complex systems, I > > > intend to see how their techniques can be used to solve the issues that > > > you raise. This is exciting! It might be fun to create a list to > > > discuss semantics and data interoperability as a complex system? I am > > > just starting to learn about complex systems. Does anyone have a lot of > > > experience with it? /Roger > > > > > > P.S. The Santa Fe Institute does work on complex systems. Also, as does > > > the New England Complex Systems Institute (http://www.necsi.org) > > > > > > P.S. A nice pop-science book on complex systems is called Complexity by > > > Waldrup > > > > > > ----------------------------------------------------------------- > > > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > > > initiative of OASIS <http://www.oasis-open.org> > > > > > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > > > > > To subscribe or unsubscribe from this list use the subscription > > > manager: <http://lists.xml.org/ob/adm.pl> > > > > ------------------------------------------------------------------------ > > ----------------------------------------------------------------- > > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > > initiative of OASIS <http://www.oasis-open.org> > > > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > > > To subscribe or unsubscribe from this list use the subscription > > manager: <http://lists.xml.org/ob/adm.pl> > > ----------------------------------------------------------------- > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > initiative of OASIS <http://www.oasis-open.org> > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > To subscribe or unsubscribe from this list use the subscription > manager: <http://lists.xml.org/ob/adm.pl> begin:vcard n:Chiusano;Joseph tel;work:(703) 902-6923 x-mozilla-html:FALSE url:www.bah.com org:Booz | Allen | Hamilton;IT Digital Strategies Team adr:;;8283 Greensboro Drive;McLean;VA;22012; version:2.1 email;internet:chiusano_joseph@b... title:Senior Consultant fn:Joseph M. Chiusano end:vcard 
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