US Patent 7415478 Virtual repository complex content model

A memory for storing data for access by an application program being executed on a computer system, comprising a data structure stored in said memory, the data structure including or referring to: a name, a content repository identifier, a plurality of properties, a plurality of property definitions associated with the plurality of properties, and wherein the data structure is logically part of a virtual content repository (VCR), and wherein the VCR represents at least one content repository.