XLDM: an Xlink-based multidimensional metamodel

The growth of data available on the Internet and the improvement of ways to handle them consist of an important issue while designing a data model. In this context, XML provides the necessary formalism to establish a standard to represent and exchange data. Since the technologies of data warehouse a...

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Bibliographic Details
Published in:Revista de gestão da tecnologia e sistemas de informação 2011-07, Vol.8 (3), p.641-662
Main Authors: Silva, Paulo Caetano da, Cruz, Mateus Silqueira Hickson, Times, Valéria Cesário
Format: Article
Language:English
Subjects:
Case studies
COMPUTER SCIENCE, INFORMATION SYSTEMS
Cubes
Data analysis
Data models
Data warehouses
Extensible Business Reporting Language
Extensible Markup Language
Formalism
Heterogeneity
Information sources
Internet
Metamodels
Multidimensional data
Multidimensional Data Metamodel
Semantics
XBRL
XLDM
XLink
XML
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Summary:The growth of data available on the Internet and the improvement of ways to handle them consist of an important issue while designing a data model. In this context, XML provides the necessary formalism to establish a standard to represent and exchange data. Since the technologies of data warehouse are often used for data analysis, it is necessary to define a cube model data to XML. However, data representation in XML may generate syntactic, semantic and structural heterogeneity problems on XML documents, which are not considered by related approaches. To solve these problems, it is required the definition of a data schema. This paper proposes a metamodel to specify XML document cubes, based on relationships between elements and XML documents. This approach solves the XML data heterogeneity problems by taking advantages of data schema definition and relationships defined by XLink. The methodology used provides formal rules to define the concepts proposed. Following this formalism is then instantiated using XML Schema and XLink. It also presents a case study in the medical field and a comparison with XBRL Dimensions and a financial and multidimensional data model which uses XLink. [PUBLICATION ABSTRACT]
ISSN:1807-1775
1809-2640
1807-1775
DOI:10.4301/S1807-17752011000300007