The category concept: an extension to the entity-relationship model
Data & Knowledge Engineering
Conceptual database design: an Entity-relationship approach
Conceptual database design: an Entity-relationship approach
Database abstractions: aggregation and generalization
ACM Transactions on Database Systems (TODS)
ADC '02 Proceedings of the 13th Australasian database conference - Volume 5
Tamino - A DBMS designed for XML
Proceedings of the 17th International Conference on Data Engineering
The VLDB Journal — The International Journal on Very Large Data Bases
Making Designer Schemas with Colors
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
Generating Compact Redundancy-Free XML Documents from Conceptual-Model Hypergraphs
IEEE Transactions on Knowledge and Data Engineering
Proceedings of the 2008 ACM symposium on Applied computing
Developing a unified design methodology based on extended entity-relationship model for XML
ICCS'03 Proceedings of the 2003 international conference on Computational science
Object role modelling and XML-Schema
ER'00 Proceedings of the 19th international conference on Conceptual modeling
XML conceptual modeling using UML
ER'00 Proceedings of the 19th international conference on Conceptual modeling
BInXS: a process for integration of XML schemata
CAiSE'05 Proceedings of the 17th international conference on Advanced Information Systems Engineering
Designing quality XML schemas from e-r diagrams
WAIM '06 Proceedings of the 7th international conference on Advances in Web-Age Information Management
Multimedia Tools and Applications
Designing XML documents from conceptual schemas and workload information
Multimedia Tools and Applications
A workload-aware approach for optimizing the XML schema design trade-off
Proceedings of the 13th International Conference on Information Integration and Web-based Applications and Services
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As XML has emerged as a data representation format and as great quantities of data have been stored in the XML format, XML document design has become an important and evident issue in several application contexts. Methodologies based on conceptual modeling are being tightly applied for designing XML documents. However, the conversion of a conceptual schema to an XML schema is a complex process. In many cases, conceptual relationships cannot be represented in a hierarchy so that they have to be represented by reference relationships in the XML schema. The problem is that reference relationships generate a disconnected XML structure and, consequently, produce an overhead cost for query processing on XML documents. This paper presents a design approach for generating XML schemas from conceptual schemas considering the expected workload of the XML applications. Query workload is used to produce XML schemas which minimize the impact of the reference relationships on query performance. We evaluate our approach through a case study where a set of XML documents are redesigned by our methodology. The results demonstrate that query performance is improved in terms of the number of accesses generated by the queries on the XML documents designed by our approach.