interactive searches - "elapsed time" attribute added

[Paul Over <over@nist.gov>]

Hi,

Dan Albertson at IU has pointed out that there was no place
for interactive runs to indicate the elapsed time for each
search as the guidelines indicate they should :

	section 2.3 # 5 : "Groups submitting interactive runs must 
	include a measure of time spent in browsing/searching for 
	each search - minutes of elapsed time from the time
	the searcher is given the topic to the time the search 
	effort ends."

So I've added an attribute to the search run dtd and the example on the 
website. The "elapsedTime" attribute is only required for interactive 
runs - though the dtd doesn't enforce that.

Information on user satisfaction etc should be reported at some level in 
the notebook/proceedings papers.


(In retrospect, it would have been useful to get the same sort of 
number for the human contribution to the manual runs but we didn't
require that. I assume groups doing manual runs will want to report
something about their manual effort in their notebook/proceedings
papers.)

- Paul
-- 
Paul Over - Retrieval Group
	    Information Access Division
	    Information Technology Laboratory
	    National Institute of Standards and Technology
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