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The Expere Knowledge Base implements an object-relational model based on the concepts of objects, types and cross references. Objects and types are grouped together in stores, where the types contained in the store indicate the allowable object types that may be inserted into the store.
Stores are designed to contain XML data, all of which must conform to a known schema. The types in a store map to elements defined in a schema, one schema per store. The top level elements of any XML document inserted into a store must be defined as a type in that store. There are also stores that contain binary data such as images.
Cross references can be created to link objects in the same store or in other stores. These cross references serve a number of purposes in Expere IE; they link document content fragments together as well as create the relationships between organizations in the precedence hierarchy.
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