Meaning of "Dry run"

[i love mjj 4 life]

is there different meanings of dry run? please help!

[Yankee]

Hi

I know the expression "dry run" to mean "rehearsal" or "practice".

Here is a link that explains the origin of the expression:
http://www.worldwidewords.org/qa/qa-dry1.htm

Amy

[Mister Micawber]

And it has associated meanings in several fields, e.g.--

-- A test exercise in combat skills without the use of live ammunition.

-- To execute a program by hand, writing values of variables and other run-time data on paper, in order to check its operation or to track down a bug. A dry run is an extreme form of desk check and is practical only for fairly simple programs and small amounts of data.
.
_________________
Native English teacher at Mister Micawber's