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- From: "Bullard, Claude L (Len)" <email@example.com>
- To: "Thomas B. Passin" <firstname.lastname@example.org>, email@example.com
- Date: Fri, 01 Dec 2000 09:03:28 -0600
Yep. That is the mantra of logistics analysis.
Function is not implementation; it is the contract
for testable or observable behavior. It can be
done as a description, of course, but there should
be, in the logistical description, a means cited
to test conformance. Chase that thought you are
having a bit further in light of namespaces being
a signature for an interface. Then ask yourself if
you need or want that given that regardless of the
spec, the use of the URN/URL means to too many, a
location, not an authoritative owner of a domain.
The problems with the semantic web will be superstitious
behavior in the face of noisy signal and establishing
authority for definitions.
Intergraph Public Safety
Ekam sat.h, Vipraah bahudhaa vadanti.
Daamyata. Datta. Dayadhvam.h
From: Thomas B. Passin [mailto:firstname.lastname@example.org]
In manufacturing, we used to talk about "form, fit, and function". If a
part or assembly met these three, you could use it in place of the
original. Other differences didn't matter. It was almost like an
mantra for some people...
"Function" would correspond to the actual responses a component
provides - what it does. Note that this is NOT implementation. "Form"
referred to size, shape, maybe weight, and so on, so it would correspond
to interface. "Fit" had to to with tolerances and interconnections, so
that seems to be part of interface too.
Yes, interface and implementation are very different. Good to remember.