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Artificial Intelligence
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CIT '05 Proceedings of the The Fifth International Conference on Computer and Information Technology
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VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
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MDM '07 Proceedings of the 2007 International Conference on Mobile Data Management
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OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part II
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ADBIS'06 Proceedings of the 10th East European conference on Advances in Databases and Information Systems
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Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
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ICWE '9 Proceedings of the 9th International Conference on Web Engineering
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Communications of the ACM - Scratch Programming for All
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ER'11 Proceedings of the 30th international conference on Conceptual modeling
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CAiSE'12 Proceedings of the 24th international conference on Advanced Information Systems Engineering
CARVE: Context-aware automatic view definition over relational databases
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CAiSE'13 Proceedings of the 25th international conference on Advanced Information Systems Engineering
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This paper presents a methodology to derive views over a relational database by applying a sequence of appropriately defined operations to the global schema. Such tailoring and composition process aims at offering personalized views over the database schema, so as to improve its ability to support the new needs of customers, support evolutionary software development, and fix existing legacy database design problems. The process is driven by the designer's knowledge of the possible operational contexts, in terms of the various dimensions that contribute to determine which portions of the global schema are relevant with respect to the different actors and situations. We formally introduce some operators, defined on sets of relations, which tailor the schema and combine the intermediate views to derive different final views, suitable for the different envisioned situations. The application to a case study is also presented, to better clarify the proposed approach.