Relational and object databases lack many data management features required by modern applications, such as versioning, rich data references, inheritence, or fine-grained security. Content repositories extend databases with such additional capabiliti

本系统主要特点： * 容易试用 网站管理者不需要懂得代码编写或网页设计，只要有一定的电脑操作基础，就可以很容易的学会使用OCM。 * 网站资源分配更合理 您可以建立多种类型的资源模型，比如新闻、产品、服务、图片、报表、影像等。-The main features of the system: * easy to try Web site managers do not need to know how to write code or web design, as