Written by Among the branching models used in software configuration management, the branch-by-purpose model offers better support for parallel development efforts and improved control of both planned and emergency software releases. If you want to improve software quality, you must first understand your software. What are its pieces? How are they organized and related to one another? If you do not understand your code base, your odds of updating it without breaking something are poor.
The Importance of Branching Models (PDF)
Links
High-level Best Practices in Software Configuration Management
Federico Cargnelutti 
I strongly recommend that you turn the No Follow off in your comment section.
I’ll watch Google Webmaster Tools, and if the links don’t show up after a couple of weeks — I won’t go back to that blog again.
Another suggestion: you should have a Top Commentator widget installed.
Do Follow and Top Commentator will ensure that you have a successful blog with lots of readers!
Thanks for the tip :)