Journal ArticleDOI
Federated database systems for managing distributed, heterogeneous, and autonomous databases
Amit P. Sheth,James A. Larson +1 more
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TLDR
In this paper, the authors define a reference architecture for distributed database management systems from system and schema viewpoints and show how various FDBS architectures can be developed, and define a methodology for developing one of the popular architectures of an FDBS.Abstract:
A federated database system (FDBS) is a collection of cooperating database systems that are autonomous and possibly heterogeneous. In this paper, we define a reference architecture for distributed database management systems from system and schema viewpoints and show how various FDBS architectures can be developed. We then define a methodology for developing one of the popular architectures of an FDBS. Finally, we discuss critical issues related to developing and operating an FDBS.read more
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Book ChapterDOI
Estimating data accuracy in a federated database environment
M. P. Reddy,Richard Y. Wang +1 more
TL;DR: A generalized method is proposed for estimating the overall data accuracy in terms of the accuracy of relevant base relations and the actual database query and the implications of non-uniform error distributions are examined in theoretical terms.
Proceedings ArticleDOI
Integrating XML data in the TARGIT OLAP system
TL;DR: A prototype has been developed that allows XML data on the WWW to be used as dimensions and measures in the OLAP system in the same way as ordinary Dimensions and measures, providing a powerful and flexible way to handle unexpected or short-term data requirements as well as rapidly changing data.
Journal ArticleDOI
Towards a Geospatial Catalogue Federation Service
TL;DR: This study investigates the feasibility of federating three distinct geospatial catalogue services and shows that protocol adaptation, query dispatching, query criteria translation, and query results integration are the four main challenges in building a catalogue federation.
Journal ArticleDOI
Knowledge based information integration systems
TL;DR: A framework for the comparison of proposals for information integration systems is presented, and it is shown that proposals differ greatly in all of the criteria stated and that the selection of an approach is thus highly dependent on the requirements of specific applications.
Proceedings ArticleDOI
BigDAWG polystore query optimization through semantic equivalences
TL;DR: This work hypothesizes that a polystore system could exploit this context-dependent disparity of performance by making choices between executing a sub-query locally and migrating the inputs for remote executions.
References
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Book
The entity-relationship model: toward a unified view of data
TL;DR: A data model, called the entity-relationship model, is proposed that incorporates some of the important semantic information about the real world and can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.
Book
Fundamentals of Database Systems
TL;DR: Fundamentals of Database Systems combines clear explanations of theory and design, broad coverage of models and real systems, and excellent examples with up-to-date introductions to modern database technologies.
Book
An Introduction to Database Systems
TL;DR: Readers of this book will gain a strong working knowledge of the overall structure, concepts, and objectives of database systems and will become familiar with the theoretical principles underlying the construction of such systems.
Book
Principles of Distributed Database Systems
M. Tamer zsu,Patrick Valduriez +1 more
TL;DR: This third edition of a classic textbook can be used to teach at the senior undergraduate and graduate levels and concentrates on fundamental theories as well as techniques and algorithms in distributed data management.
Journal ArticleDOI
A comparative analysis of methodologies for database schema integration
TL;DR: The aim of the paper is to provide first a unifying framework for the problem of schema integration, then a comparative review of the work done thus far in this area, providing a basis for identifying strengths and weaknesses of individual methodologies, as well as general guidelines for future improvements and extensions.