https://www.dotnetzone.gr:443/cs/blogs/abekiaris/archive/2009/07/04/inspect-xaf-code-quality-and-override-version-migration-problems-using-ndepend.aspxNDepend is the most wonderful analysis tool I have ever found . It can help you by providing metrics of your code or anyone else  code, specify code constrains, analyze code, diff between versions of your code.  It also has an open source licenseelCommunityServer 2.1 SP3 (Build: 20423.1)