Designing XML documents from conceptual schemas and workload information |
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Authors: | Email author" target="_blank">Rebeca?SchroederEmail author Ronaldo?dos Santos?Mello |
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Affiliation: | (1) Informatics and Statistics Department, Federal University of Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil |
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Abstract: | Due to the increase of XML-based applications, XML schema design has become an important task. One approach is to consider
conceptual schemas as a basis for generating XML documents compliant to consensual information of specific domains. However,
the conversion of conceptual schemas to XML schemas is not a straightforward process and inconvenient design decisions can
lead to a poor query processing on XML documents generated. This paper presents a conversion approach which considers data
and query workload estimated for XML applications, in order to generate an XML schema from a conceptual schema. Load information
is used to produce XML schemas which can respond well to the main queries of an XML application. We evaluate our approach
through a case study carried out on a native XML database. The experimental results demonstrate that the XML schemas generated
by our methodology contribute to a better query performance than related approaches.
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Keywords: | Conceptual schemas XML schemas Workload Query performance |
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