Re: F-22 Raptor software problem

"Aurele" <aurele.vitali@xxxxxxxxx> wrote in message
news:1172635528.435013.151190@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Feb 27, 9:33 am, "Bob Spooner" <r...@xxxxxxx> wrote:
"Aurele" <aurele.vit...@xxxxxxxxx> wrote in message

news:1172502110.098416.297700@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> On Feb 26,
3:55 am, "Alex R. Mosteo" <devn...@xxxxxxxxxxxxxx> wrote:

Well, someone is likely to lose their job for improperly implementing
the geoid and/or datum model!

I would be inclined to think that the (derived) requirements were
incompletely specified and therefore didn't cover the case of what
happens
when the nav system, while using GPS signals for time, crosses the date
line
(or something like that.) -- Bob

I'm sure its not a drived requirement. The international date line has
been there forever! Also, time is always measured wrt Greenwich time
in England. So, not a big deal. As Simon above said, it is probably
just a test case that fell through the cracks! Go to
http://wwp.greenwichmeantime.com/info/timezone.htm for more info on
Time Zones.

p.s. "or something like that" has very little meaning! :-)

Well, the reason I think that it is a derived requirement is because if it
were explicit in the contract, there would have to be traceability to both
the code implementation and to the test that verified that it was
implemented correctly. Bob


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