Jurnal Ilmiah

XML Databases and the Semantic Web

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Penerbit

: ., 2002

Deskripsi Fisik

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Bahasa

English

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Klasifikasi

E - Book

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Developments in information systems technologies have resulted in computerizing many applications in various business areas. Data are critical resources in many organizations; and therefore, efficiently accessing and sharing the data, extracting information from the data, and making use of the information have become urgent. As a result, many efforts on integrating the various data sources scattered across several sites and extracting information from these databases in the form of patterns and trends also have become important. These data sources may be databases managed by database management systems, or they could be data warehoused in a repository from multiple data sources. The advent of the World Wide Web (WWW) in the mid-1990s has resulted in even greater demand for effectively managing data, information, and knowledge. So much data are now available on the Web that managing the information with conventional tools is becoming almost impossible. New tools and techniques are needed to handle these data. Therefore, to provide the interoperability as well as warehousing between the multiple data sources and systems, and to extract information from the databases and warehouses on the Web, various tools are being developed. The focus of one of my previous books was on managing the large quantities of data on the Web as well as on applying various data management techniques to a specific application: electronic commerce (e-commerce). That book was devoted to the emerging technology area called Web data management with special emphasis on e-commerce. In general, data management includes managing the databases, interoperability, migration, warehousing, and mining. For example, data on the Web have to be managed and mined to extract information, patterns, and trends. Data could be in files, relational databases, or other types such as multimedia databases. Data may be structured or unstructured. Although my previous book addressed numerous topics on Web data management at a high level, some critical technologies have emerged for Web data management. These are Extensible Markup Language (XML), semistructured databases, and the semantic Web. All these critical technologies now have a huge impact on electronic business (e-business), which is much more than e-commerce. Whereas my previous book covered many topics at a high level to give the reader an understanding of what the Web is about, this book focuses on some of the critical technologies needed for organizations to conduct transactions, to understand effective use, and to exchange complex documents on the Web. The organization of this chapter is as follows: I discuss supporting technologies for Extensible Markup Language (XML) in Section 1.2 . Key points on XML and the semantic Web are the topics of Section 1.3. Applications of XML to data management, e-business, and other areas are covered in Section 1.4. (Topics in Sections 1.2 to 1.4, are further examined in the remaining chapters of Part I and in Parts II and III of this book.) The organization of this publication is the subject of Section 1.5 . Put all together, I describe a framework for XML and applications that gives some context to the various XML and related data management technologies. Parts 1, II, and III deal with layers 1, 2, and 3 of the framework, respectively. Finally, this chapter is summarized in Section 1.6, which also includes a discussion of directions.

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