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Converting XML Data to UML Diagrams for Conceptual Data
Integration (Journal Edition) (Abstract)
To support analytical applications such as On-Line Analytical
Processing (OLAP), the demand for data integration in modern
enterprises is rapidly becoming larger as more and more information
sources appear. In many situations a logical (rather than physical)
integration of data is preferable since some data is inherently not
suited for storing in a physically integrated data warehouse. Previous
web-based data integration efforts have focused almost exclusively on
the logical level of data models, creating a need for techniques
focused on the conceptual level. Extensible Markup Language (XML) is
fast becoming the new standard for data representation and exchange on
the World Wide Web, e.g., in B2B e-commerce, making it necessary for
data analysis tools to handle XML data as well as traditional data
formats.
This paper presents algorithms for automatically constructing UML
diagrams from XML data and shows how to use the diagrams for the
conceptual design of (virtual) data warehouses based on web data. An
integration architecture is also presented. Unlike earlier work, the
focus of this paper is the support of (OLAP) systems based on web
data.
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