XML-based information mediation with MIX
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
SilkRoute: trading between relations and XML
Proceedings of the 9th international World Wide Web conference on Computer networks : the international journal of computer and telecommunications netowrking
Efficient evaluation of XML middle-ware queries
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Active Views for Electronic Commerce
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
XPERANTO: Middleware for Publishing Object-Relational Data as XML Documents
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Views in a Large Scale XML Repository
Proceedings of the 27th International Conference on Very Large Data Bases
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
Optimizing view queries in ROLEX to support navigable result trees
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
MARS: a system for publishing XML from mixed and redundant storage
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
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Existing systems that support semistructured views do not maintain semantics during the process of designing views. Thus, there is no guarantee that the views obtained are valid and reversible views. In this paper, we propose an approach to designing valid and reversible semistructured views. We employ four types of view operators, namely, select, drop, join and swap operators, and develop a set of rules to maintain the semantics of the views when the swap operator is applied. We also examine the reversible view problem and develop rules to guarantee the designed views are reversible. Finally, we examine the possible changes to the participation constraints of relationship types and propose rules to keep the participation constraints correct.