From: ara.t.howard@...
Date: 2007-02-23T00:06:57+09:00
Subject: Re: [Facets] Range#overlap?

On Thu, 22 Feb 2007, Bob Hutchison wrote:

> I've worked in systems requiring temporal and interval logics for years.
> Here is something I can pretty much guarantee: if you don't get your
> terminology right you are going to spend almost all of your time trying to
> figure out what each other is saying. Allen's terminology is described and
> illustrated on page 10 of the paper:
<snip>
> You know, this probably is worth writing up as a trivial library and
> sharing... but how to represent an interval :-)

indeed.  if people are looking fo a concrete example of why these definitions
are important, including some nice confusing examples, see

   http://codeforpeople.com/lib/ruby/btpgsql/btpgsql-0.2.4/doc/

regards.

-a
-- 
be kind whenever possible... it is always possible.
- the dalai lama