testing application and software using metrices

I just came across this paper(http://ift.tt/1nNrIjU) suggesting that best way to evaluate framework of application is by Quality Tests consisting of Size Metrics: lines of code (LOC), number of statements, the comment lines and the ratio between comment lines and lines of code. Complexity Metrics: McCabe’s cyclomatic complexity (CC), Branches and Depth. Maintainability Metrics: Halstead metrics (Program Volume and Program Level) and Maintainability Index (MI). and than Validation Tests using Yasca (sourceforge.net/ projects/yasca) software utility, in combination with JavaScript Lint (javascriptlint.com). for Overall errors include critical, high, low severity errors and informational errors. There is no proper explaination why this test are best I wanted to take it as my research topic for master but wanted a second suggestion ..