Method, system, and program product for the implementation of an attributegroup to aggregate the predefined attributes for an information entity within a content management system

A database management system, method, and program product for managing a relational database of items. Each of the items has a plurality of attributes, and the relational database is adapted to operate on the items as a function of the attributes of an item. According to our invention the attributes are arrayed in a hierarchal array of attributes and levels of attribute groups, such that an attribute group contains one or more attributes. According to our invention an attribute is contained in only one first level attribute group, and an intermediate attribute group is contained in only one attribute group at a next higher level. In a preferred embodiment of our invention the items are content items.