禅道项目管理软件是一款国产的，基于LGPL协议，开源免费的项目管理软件，它集产品管理、项目管理、测试管理于一体，同时还包含了事务管理、组织管理等诸多功能，是中小型企业项目管理的首选，基于自主的PHP开发框架──ZenTaoPHP而成，第三方开发者或者企业可以非常方便的开发插件或者进行定制。(Zen is a domestic project management software, based on the LGPL protocol, free open source project management software, which combines product management, project management, testing management in one, but also includes the functions of transaction management, organization management, project management of small and medium enterprises preferred, and PHP development framework of ZenTaoPHP based on independent, third party developers or companies can easily develop plug-ins or customize.)