Reengineering Fuzzy XML into Fuzzy Database Models

Abstract

Since the simplicity and flexibility of eXtensible Markup Language (XML), it has become the lingua franca for data exchange on the Web. Also, in order to deal with imprecise and uncertain information in many real-world applications, fuzzy XML has been extensively investigated as introduced in Chap. 3. However, XML brings some limitations, e.g., it may be difficult to store various data in a semantics way because of the semi-structured characteristic of XML. As we have known, fuzzy databases such as fuzzy relational databases and fuzzy object-oriented databases can store a large set of semantic information. Therefore, there is an increasing need to reengineer fuzzy XML into fuzzy database models, which may satisfy the needs of storing fuzzy XML data in fuzzy databases. In this chapter, we focus on reengineering fuzzy XML into fuzzy database models, including fuzzy UML data models, fuzzy relational database models, and fuzzy object-oriented database models.