[Sigia-l] facet vs. term vs. concept (was Re: Faceted Classification)

[Tanya Rabourn]

There is Ranganathan's PMEST formula that's useful to keep in
mind when constructing facets I think. The most fundamental
facets are:

Personality - the thing itself, its name or something
Matter - what it is composed of
Energy - the action performed on or by the thing
Space - where this action takes place
Time - when it takes place

So in our big DB of things that no longer exist could use the
following facets:

The Lighthouse of Alexandria (p)
material: Marble (m)
function: Lighthouse (e)
provenance: Alexandria Egypt (s)
date: 300BC (t)

Other names that the lighthouse might be known by (pharos?) would
be part of the authority control in our DB (hopefully).

Here's the entry for the formula in the ASIS thesaurus:
http://www.asis.org/Publications/Thesaurus/21207.htm

-Tanya
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Tanya Rabourn <rabourn at columbia.edu>
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