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From Grant Ingersoll <>
Subject [OT, slightly] Some interesting metrics on Lucene
Date Mon, 09 Jul 2007 01:27:06 GMT has some interesting metrics on  
Lucene (and Solr and Nutch).  Most interesting is that they estimate  
it is 34 person years to develop at a cost of approximately $1.8  
million dollars (using a salary of $55k)

One thing they do not do in their analysis is look at the help that  
people give to the community.  There are many people in the community  
who contribute a whole lot of time answering questions, etc. who  
never submit a single patch.  They also don't properly credit the  
people who created the original patch, merely giving credit to the  
committer who applied it.

At any rate, I thought it was interesting.


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