On 7/18/07, Jason Hudgins <[EMAIL PROTECTED]> wrote: [...]
I've had a few conversations where someone has expressed it as a hierarchy. My intuition must work differently, I think of the "from" and "to" as a pair where neither entity is the parent. Very similar to the latitude and longitude examples for the geo service in RWS.
FWIW to the intuition, rather than thinking whether or not it's "hierarchical" it might be worth thinking of it in terms of being "ordered" (as in order specific). In that case, the ordering of the pair is critical. Hope this helps, John
