CDL: Published Dates as a Percentage of the Collection

From: John P. Abbott <abbottjp_at_conrad.appstate.edu> Date: Sat, 13 Nov 2004 07:43:01 -0500 To: colldv-l <colldv-l_at_usc.edu>

Subject: Collection Analysis and Published Dates as a Percentage of the
Collection
From:     Guy, Donald W" <dwguy_at_sandia.gov>

Hello All - 

I am new to this list - so please accept my apologies 
if my question or search for information has been addressed 
in previous posts.

I am working on a collection analysis project where one 
goal will be to determine what percentage of my collection 
has been published within the last 5 years and the last
10 years.  Does anyone know where I can find industry 
standards or benchmarks which will tell me what a good 
(or bad) percentage is?  For example if 10% of my
collection has been published within the last five years 
- would this be a good percentage - representing adequate 
currency of information?  The size of collection we are
looking to analyze is around 75,000 items.  This is a 
technical library collection that supports research and 
development for a variety of engineering and science
disciplines; the bulk of working involving mathematics, 
electronics & electrical engineering, physics, chemistry, 
mechanical engineering and the material sciences.

Any help, feedback and/or guidance is greatly appreciated. 

Please respond directly to me at dwguy_at_sandia.gov 

Best Regards, 

Donald W. Guy