An Object-Relational Data Warehouse Modelig for Complex Data

A data warehouse is an essential component to the decision support system. The traditional data warehouse provides only numeric and character data analysis. But as information technologies progress, complex data such as semi-structured and unstructured data become vastly used. Developing new data warehouse technologies to accommodate the demand of integrating complex data is important. In this paper, we propose a data model for the complex data warehouse. This model incorporates the well-known star schema with object-relational concepts, inheriting the easy-understanding and multidimensional characteristic, and providing mechanisms to integrate complex data in a data warehouse model.