Re: Resiliency To New Data Requirements
Date: 17 Aug 2006 04:47:33 -0700
Message-ID: <1155815253.852900.203160_at_74g2000cwt.googlegroups.com>
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
Received on Thu Aug 17 2006 - 13:47:33 CEST