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
Citations
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Journal ArticleDOI
Ontology-based semantic integration scheme for medical image grid
TL;DR: This paper proposes an OSIS (ontology-based semantic integration scheme) for MedlmGrid, which adopts a hybrid method to build MedLmGrid ontologies and unifies its information exchange model with HL7 (Health Level 7) v3 protocol.
Book ChapterDOI
Multi-Data Models Translations in Interoperable Information Systems
TL;DR: A methodology called TIME is defined, which is based on an extensible meta model, which has a set of meta-types which can be used to represent the syntax and the semantics of data modeling concepts, a knowledge base of transformation rules that map a meta-type into other meta- types, and an inference engine which uses the transformation rules to translate schema from source to target models.
Book ChapterDOI
Dynamic Query Processing for P2P Data Services in the Cloud
Pawel Jurczyk,Li Xiong +1 more
TL;DR: The details of the dynamic query execution engine within DObjects, a general-purpose P2P-based query and data operations infrastructure that dynamically adapts to network and node conditions, are presented.
Journal ArticleDOI
Equivalence of Keyed Relational Schemas by Conjunctive Queries
TL;DR: This work resolves the conjecture in the affirmative for the case of query equivalence based on mappings using conjunctive relational queries with equality selections for schema equivalence.
Proceedings ArticleDOI
Data integration in the RODIN multidatabase system
TL;DR: The problems of object identification and data integration in heterogeneous multidatabase systems are addressed and facilities which enforce the properties of object identity being an equivalence relation are presented, including techniques for translation of queries of the integrated data.
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.