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Re: The triples datamodel -- was Re: Semantic Web pe

• To: Henrik Martensson <henrik.martensson@b...>
• Subject: Re: The triples datamodel -- was Re: Semantic Web permathread, iteration n+1
• From: John Cowan <cowan@c...>
• Date: Tue, 8 Jun 2004 06:56:35 -0400
• Cc: xml-dev@l...
• In-reply-to: <1086676833.3719.154.camel@l...>
• References: <40C31EFC.2090203@k...> <p06010202bce8dc0073d2@[192.168.254.88]> <40C33FD3.3050308@c...> <40C35952.1080209@k...> <40C36038.6020900@c...> <1086642052.3611.17.camel@l...> <40C52D2F.7080005@c...> <40C5411D.5050905@z...> <891ACD72-B90B-11D8-B347-000A95CCC59E@x...> <1086676833.3719.154.camel@l...>
• User-agent: Mutt/1.3.28i

Henrik Martensson scripsit:

> For the record, if two systems exchange information, and changes in one
> system mean that the exchange format has to change, the systems are
> _not_ loosely coupled. There has been a tendency in this thread to
> equate "loose coupling" with "ignoring changes in couplings", but this
> is wrong. Loosely coupled systems must still play by the rules they have
> agreed on.

In a really loosely coupled system, like Walter's, the "sender" has no
clue that the "receiver" even exists, still less is there any agreement
between them.  The sender has published something, and the receiver must
make do as best he can.

-- 
Is not a patron, my Lord [Chesterfield],        John Cowan
one who looks with unconcern on a man           http://www.ccil.org/~cowan
struggling for life in the water, and when      http://www.reutershealth.com
he has reached ground encumbers him with help?          jcowan@r...
        --Samuel Johnson

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  • Re: The triples datamodel -- was Re: SemanticWeb permathread, iteration n+1
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