URL
http://www.devalot.com/articles/2008/09/ruby-singleton
http://www8.hp.com/us/en/software-solutions/application-security/
https://www.soapui.org/security-testing/working-with-security-tests.html
https://saas.hpe.com/software/sca/details
http://comp327.blogs.rice.edu/files/2011/03/F360_v2.6_SCA_User_Guide.pdf
http://www.cs.cmu.edu/~aldrich/courses/654/tools/dsouza-fortify-07.pdf