When I first read "7x3," I thought, immediately, that
it was a reference to facets and orthogonality. But,
more to the point, I would think, at the least, that
any numbers related to describing the structure of a
given vocabulary would, in great part, indicate the
adequate to thorough coverage of a domain.
It seems that applying the "7x3" or "7 + or -2" rules
focuses primarily on, or biases in favor of, the user
at the risk of losing sight of content warrant.
--- Phil Murray <phil.murray@ aelera.com> wrote:
> Recognition and who knows what other factors.
> This "rule" is one of my pet peeves. It's often
> cited as "authoritative"
> ... but with no authority behind it.
> Like a facet should be no more than 4 levels deep.
> Reminds me of early pronouncements about online page
> design, claiming
> (among other things) that you should have no more
> than 5 links per page.
> Trouble was, these early hypertext "rhetoricians"
> were focusing on small
> monospaced screens and such early hypertext
> publishing systems as
> HyperTIES. (OK, I'm dating myself.)
> Changes in technology tend to make liars of all
> would-be gurus.
> Real-world applications often make them brazen
> Phil Murray
> Enterprise Knowledge Architect
> Aelera Corp.
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