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Re: Designing XML to Support Information Evolution

• To: Robert Koberg <rob@k...>
• Subject: Re: Designing XML to Support Information Evolution
• From: Bob Foster <bob@o...>
• Date: Fri, 21 May 2004 08:34:03 -0500
• Cc: Michael Kay <michael.h.kay@n...>,'Rick Marshall' <rjm@z...>,'xml-dev DEV'' <xml-dev@l...>
• In-reply-to: <40ADFF88.4040909@k...>
• References: <20040521080918.PQPV19746.mta01-svc.ntlworld.com@Turtle> <40ADFF88.4040909@k...>
• User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007

Robert Koberg wrote:
> Michael Kay wrote:
> 
>>> hmmm... isn't the internet a hierarchy? has that failed?
>>
>> If the internet is a hierarchy, can you tell me how to find the root?
> 
> A quick google turned up:
> 
> http://www.support.psi.com/support/common/inet-serv/dns/hierarc.html
> 
> "The Domain Name System is a distributed hierarchical system for 
> resolving host names into IP addresses. The DNS has a root domain at the 
> top of the hierarchy and directly under are the top-level domains. The 
> root of the tree has no name. All siblings of a domain must have unique 
> names. Children of a domain are called subdomains of the parent."
> 
> ----
> 
> On another note, I know you (Michael) are interested in genealogy. How 
> do you get the root of a family tree?

So the Internet is a tree of domains, and simultaneously a forest of 
named subdomains.

The mitochondrial family tree has a root. The y-chromosome tree has 
another. But the human family tree is a forest, as well.

Or, as MURATA Makato styles it, a hedge.

Bob Foster

• References:
  • RE: Designing XML to Support Information Evolution
    • From: "Michael Kay" <michael.h.kay@n...>
  • Re: Designing XML to Support Information Evolution
    • From: Robert Koberg <rob@k...>

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