Re: definition of terms

Thank you very much for your reply. It was definately helpful.
I also think that your website is a great resource as well, as it
contains many useful articles and links.

Best Regards,
Umesh


Leonard Will wrote:

> In message <[email protected]> on Thu, 25 Nov 2004, Umesh
> Persad <[email protected]> wrote
> >
> >Dear List members,
> > I would like to find out your definition of the following
> >terms and how they are diferent:
> >
> >Classification and Characterisation
> >Facet and Dimension
> >
> >Are they the same or are they diferent?
> >
> >Thank you very much,
> >Umesh
>
> As different people use terms such as these to mean different things,
> confusion often arises. I am a member of a working party drafting a new
> standard to replace the current British Standard for thesaurus
> construction, BS5723, which is identical to the international standard
> ISO 2788. In our draft we recommend various definitions; we do not claim
> that these are "correct" and that other meanings are "wrong", but we
> consider that it would be helpful if everyone used the same words with
> the same meaning.
>
> The definitions in the draft include the following:
>
> ================= Start of definitions ==================
> array
> = group of sibling terms
>
> EXAMPLE In the following, outerwear and underwear are sibling terms in
> the same array.
>
> clothing
>     outerwear
>         overcoats
>     underwear
> ------------------------------------------------------
> characteristic of division
> = attribute by which a concept can be subdivided into an array of
> narrower concepts each having a distinct value of that attribute
>
> EXAMPLE In the following, "age group" is the characteristic by which the
> concept of "people" is divided.
>
> people
>     (people by age group)
>     children
>     youths
>     adults
> ------------------------------------------------------
> classification
> = grouping together of similar or related things and the separation of
> dissimilar or unrelated things and the arrangement of the resulting
> groups in a logical and helpful sequence
> ------------------------------------------------------
> facet
> = high-level grouping of concepts of the same inherent category
>
> NOTE Examples of categories that may be used for grouping concepts into
> facets are: activities, disciplines, people, materials, living
> organisms, objects, places and times.
>
> EXAMPLE 1 Animals, mice, daffodils and bacteria could all be members of
> a living organisms facet.
>
> EXAMPLE 2 Digging, writing and cooking could all be members of an
> activities facet.
>
> EXAMPLE 3 Paris, the United Kingdom and the Alps could all be members of
> a places facet.
> ------------------------------------------------------
> faceted classification scheme
> = classification scheme in which subjects are analysed into their
> constituent facets
>
> NOTE Separate schedules are compiled for each facet, and terms from
> these may be combined according to prescribed rules to express a
> compound subject.
> ------------------------------------------------------
> node label
> = label inserted into a hierarchical or classified display to show how
> the terms have been arranged
>
> NOTE A node label contains one of two different types of information:
> either a) the name of a facet to which following terms belong; or b) the
> attribute or characteristic of division by which an array of sibling
> terms has been sorted or grouped.
> ------------------------------------------------------
> sibling term
> = one of two or more terms with the same immediate broader term
>
> EXAMPLE In the following, "outerwear" and "underwear" are sibling terms
> in the same array.
>
> clothing
>     outerwear
>         overcoats
>     underwear
>
> ==================== End of definitions ========================
>
> I hope that these will make it clear what we mean by "classification"
> and "facet". Note that in some literature the thing that we call a
> "facet" is called a "fundamental facet" and the thing that we call an
> "array" is called a "subfacet". I think that using the term "facet" for
> both of these is misleading, because they are of quite different
> natures.
>
> I don't know how to interpret the word "dimension" that you ask about,
> as it depends on context, but I suspect that it may sometimes be used to
> refer to an array grouped by some specified characteristic of division,
> such as "wines by colour". I would not use the expression "dimension"
> for this.
>
> I also don't know how to interpret "characterisation". It might mean
> specification of attributes or characteristics, but again it depends on
> context.
>
> Another term sometimes found is "categorisation", which I think
> generally means a form of broad or loose classification, but I don't
> have a definitive definition for it.
>
> I hope that this is of some help.
>
> Best wishes
>
> Leonard Will
>
> -- 
> Willpower Information       (Partners: Dr Leonard D Will, Sheena E Will)
> Information Management Consultants              Tel: +44 (0)20 8372 0092
> 27 Calshot Way, Enfield, Middlesex EN2 7BQ, UK. Fax: +44 (0)870 051 7276
> [email protected]               [email protected]
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>




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