Hi,

Here is the White paper

http://www.dwheeler.com/oss_fs_why.html

Why Open Source Software / Free Software (OSS/FS)? Look at the Numbers!

By David A. Wheeler

dwheeler@dwheeler.com Revised as of April 16, 2002

This paper provides quantitative data that, in many cases, using open source software / free software is a reasonable or even superior approach to using their proprietary competition according to various measures. This paper examines market share, reliability, performance, scaleability, security, and total cost of ownership. It also has sections on non-quantitative issues, unnecessary fears, and other sites providing related information, and ends with some conclusions.