A Black Duck analysis shows the average enterprise software project is 22% open source, saving an average of $26 million on each project.

The estimate was created using the Constructive Cost Model, first released in 1981. Black Duck, which originally developed its database of code to help companies comply with software licenses, is increasingly turning to it as a research tool, a sort of Framingham Heart Study of software.

In the last few months, for instance, it has documented the rising use of Javascript and PHP, the return of the software M&A market, and the increased use of strong encryption in open source, using its data. Were trying to package up the information around open source projects and serve it in a way thats productive, acknowledged Peter Vescuso, (above, right) executive director of business marketing.

Increased interest in and use of open source by enterprises has helped drive excellent growth for the company over the last year, said CEO Tim Yeaton (left). When the recession started, even conservative organizations have moved to open source. Studies like this one are a way of giving back.

Read the whole story at http://blogs.zdnet.com/open-source/?p=5232