Path: dp-news.maxwell.syr.edu!spool.maxwell.syr.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!postnews.google.com!74g2000cwt.googlegroups.com!not-for-mail
From: "JOG" <jog@cs.nott.ac.uk>
Newsgroups: comp.databases.theory
Subject: Re: Resiliency To New Data Requirements
Date: 17 Aug 2006 04:47:33 -0700
Organization: http://groups.google.com
Lines: 28
Message-ID: <1155815253.852900.203160@74g2000cwt.googlegroups.com>
References: <1155219445.529038.272120@h48g2000cwc.googlegroups.com>
   <1155228934.005413.83140@m79g2000cwm.googlegroups.com>
   <1155255599.217178.66640@m73g2000cwd.googlegroups.com>
   <1155345863.286416.18290@b28g2000cwb.googlegroups.com>
   <1155355195.433608.11110@i42g2000cwa.googlegroups.com>
   <1155689865.386329.74030@i3g2000cwc.googlegroups.com>
   <1155693116.038826.192350@h48g2000cwc.googlegroups.com>
   <1155698595.475758.261530@p79g2000cwp.googlegroups.com>
   <1155747583.831952.130030@75g2000cwc.googlegroups.com>
   <1155762375.589498.293720@b28g2000cwb.googlegroups.com>
   <1155784612.476010.179740@h48g2000cwc.googlegroups.com>
   <1155808225.557316.217500@74g2000cwt.googlegroups.com>
   <1155813471.003035.323940@h48g2000cwc.googlegroups.com>
   <1155814294.051678.9630@75g2000cwc.googlegroups.com>
   <1155814528.678546.145270@m79g2000cwm.googlegroups.com>
NNTP-Posting-Host: 128.243.220.21
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
X-Trace: posting.google.com 1155815257 19455 127.0.0.1 (17 Aug 2006 11:47:37 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Thu, 17 Aug 2006 11:47:37 +0000 (UTC)
In-Reply-To: <1155814528.678546.145270@m79g2000cwm.googlegroups.com>
User-Agent: G2/0.2
X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6,gzip(gfe),gzip(gfe)
X-HTTP-Via: 1.1 cache1.nottingham.ac.uk:3128 (squid/2.5.STABLE3)
Complaints-To: groups-abuse@google.com
Injection-Info: 74g2000cwt.googlegroups.com; posting-host=128.243.220.21;
   posting-account=WQE_Eg0AAACz0MT8Z7vkSN2k8y0AQ1oA
Xref: dp-news.maxwell.syr.edu comp.databases.theory:44331


erk wrote:
> JOG wrote:
> > [Boehm 1978] 'structuredness' used by in relation to programming.
> > [Codd 1979] referred to structured (formatted) data.
> > [Belkin et al. 1992] referred to "unstructured or semistructured
> > data" for information retrieval
> > [Quass et al. 1995] referring to data with highly irregular schema.
> > [Abiteboul 1997] cemented the terminology in "Querying
> > semi-structured data"
> > etc..
> >
> > Be warned however, although several of the above papers popularized the
> > terminology, most of the work done with unstructured/semi-structured
> > data will make anyone versed in database theory feel distinctly faint.
>
> Thanks, I will look at the above. I thought the terminology was fairly
> ill-defined. Is it in the same state as O-O, where there are various
> theories but nothing cohesive or consistently applied?

Yes you've hit the nail on the head. The definitions are accepted, but
are extremely wooly and lack formality.

> Or has there
> been something resembling a convergence among "experts"?
> 
> - erk