Active rules for XML: A new paradigm for E-services |
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| Authors: | Angela Bonifati Stefano Ceri Stefano Paraboschi |
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| Affiliation: | (1) Dipartimento di Elettronica e Informazione, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy; E-mail: {bonifati,ceri,parabosc}@elet.polimi.it , IT |
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| Abstract: | XML is rapidly becoming one of the most widely adopted technologies for information exchange and representation. As the use
of XML becomes more widespread, we foresee the development of active XML rules, i.e., rules explicitly designed for the management
of XML information. In particular, we argue that active rules for XML offer a natural paradigm for the rapid development of
innovative e-services. In the paper, we show how active rules can be specified in the context of XSLT, a pattern-based language
for publishing XML documents (promoted by the W3C) which is receiving strong commercial support, and Lorel, a query language
for XML documents that is quite popular in the research world. We demonstrate, through simple examples of active rules for
XSLT and Lorel, that active rules can be effective for the implementation of e-commerce services. We also discuss the various
issues that need to be considered in adapting the notion of relational triggers to the XML context.
Received: 30 October 2000 / Accepted: 19 December 2000 Published online: 27 April 2001 |
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| Keywords: | : Active databases – Document management – XML – XSLT – Query languages for XML |
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