Conceptual Model Based Normalization of XML

As the popularity of XML as a format for data representation grows the need for storing XML data in an effective way grows as well. Recent research has provided with effective solutions based on storing XML data into relational databases and with new technologies based on storing XML data in the native form. However, design of XML databases has not been studied sufficiently yet. This paper supposes a set of XML schemes that describe XML representation of the data in several types of XML documents. They show that they can not usually store the data directly in this representation because it can contain redundancies. To design an optimal database schema they therefore need to locate these redundancies and eliminate them.