Open source software programs are community-based software development that addresses the issue of code revisions and tracking bugs far efficiently. The term open source means it provides access to the product's source code material. The open source model promotes the differing development approaches in contrast to a centralized concept used in commercial software production companies. Many community tools that are being used now such as blogs, forums, wikis and many management tools such as continuous integration, lab management are taken care by these open source programs far more effectively.