TECH: Computer Replacement Plan - How often to replace technology?

[Michelle Walker <wadelle2@CS.COM>]

I will be approaching our school board to request additional funding for ongoing 
replacement of outdated computer systems.  I believe the recommended replacement of 
technology is every three years, but I cannot find any credible, authoritative 
resource I can cite this figure from and use as a recommendation.

I've been trying Google searches and finding many sample replacement plans from 
other schools and organizations, nearly all of which recommend three years as a 
target, but none cite a reliable, recommending source.  If anyone has a great, 
reliable source, article, etc. I can use to support the three year plan, I would 
greatly appreciate it.

Michelle Walker, Librarian
Hamilton Union High School
Hamilton City, CA 95951
mwalker@glenn-co.k12.ca.us

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