By Topic

Using containment information for view evolution in dynamic distributed environments

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Nica, A. ; Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA ; Rundensteiner, E.A.

The maintenance of materialized views in large scale environments composed of numerous information sources (ISs), such as in the WWW, is complicated by ISs not only continuously modifying their contents bur also their capabilities (schemas and query interfaces). With current view technology, views become undefined when ISs change their capabilities. Our Evolvable View Environment (EVE) project addresses this new problem of evolving views under IS capabilities changes, which we call the view synchronization problem. Key principles of EVE include a user specified preference model for view evolution (Evolvable-SQL (E-SQL)) and a Model for Information Source Descriptions (MISD). We present a formal characterization of correctness of view synchronization using containment constraints defined in MISD. Then, we give a novel view synchronization algorithm for view rewriting, exploiting general containment constraints between the to-be-replaced relation and its replacement

Published in:

Database and Expert Systems Applications, 1998. Proceedings. Ninth International Workshop on

Date of Conference:

25-28 Aug 1998