I have been applying for jobs online and a lot of them ask to describe your work history in 3-5 words.  How do I do that?

 

Also, I am applying for Civilian Positions with the US Government, I was told that the words need to be different as a computer chooses the interviewees.  Any suggestions there?

 

http://www.usajobs.opm.gov/

use the job title

It sounds like they are matching on keywords.  If that's the case, reverse-engineer it.  Figure out which keywords to search with in order to display the job(s) you want, and then determine which of those keywords also match your work history, and provide those.  For me it might be "software quality assurance manager".  For someone else it might be "peoplesoft human resources" or "senior accounts payable receivable clerk".