Re: A question on terms

"D-Day" has taken on the popular meaning "Debarkation Day", but in
planning
circles (both military and civilian) it's just a planning marker, and
was
used at least as far back as WWI.

Planning is set up in reference to D-Date or D-Zero.

Say something is supposed to be accompliched 14 days prior to D-Day.
That
activity completion is scheduled for D-14.
If the activity is supposed to take place 14 AFTER D-Day, it's D+14.

"H-Hour" does the something for hours, "M-Minute" for minutes, and
there's
even a "S-second" in industrial planning.

Why all this? It allows planners to schedule complicated activities as a
process, rather than a series of calender linked end dates. If the
"D-Date"
gets changed, everything is adjusted from there, rather than 40,000
people
going "That June 26th completion date, was that the new schedule, the
old
schedule, or the new old schedule?"

----- Original Message ----- 
From: "Don M" <dmaddox1@hot.rr.com>
To: <gzg-l@csua.berkeley.edu>
Sent: Thursday, June 03, 2004 8:41 PM
Subject: Re: A question on terms

> What does the D in D-Day stand for?  Was in asked this in game
tonight,
and
> I'm not sure.
>
> Please help
>
>
> Debarkation Day, used for the first day of all army operations back in
the
> 40s.
>
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