Object Discovery and Uni cation inFederated Database Systems

A key challenge in sharing oriented information management environments such as networks of heterogeneous autonomous database systems is to provide capabil ities to allow information units and resources to be exibly and dynamically com bined and interconnected while at the same time preserving the investment in and the autonomy of each individual component The research described here speci cally focuses on two key aspects of this how to discover the location and content of relevant nonlocal information units and how to identify and resolve the semantic heterogeneity that exists between related information in di erent database compo nents Our approach serves as a basis for the sharing of related concepts through partial meta data conceptual schema uni cation without the need for a global view of data We demonstrate and evaluate our approach using the Remote Exchange ex perimental prototype system which supports information sharing and exchange from the above perspective

[1]  Umeshwar Dayal,et al.  View Definition and Generalization for Database Integration in Multibase: A System for Heterogeneous Distributed Databases , 1982, Berkeley Workshop.

[2]  Stefano Ceri,et al.  Distributed Databases: Principles and Systems , 1984 .

[3]  C. Batini,et al.  A comparative analysis of methodologies for database schema integration , 1986, CSUR.

[4]  James A. Larson,et al.  A tool for integrating conceptual schemas and user views , 1988, Proceedings. Fourth International Conference on Data Engineering.

[5]  William Kent.  The many forms of a single fact , 1989, Digest of Papers. COMPCON Spring 89. Thirty-Fourth IEEE Computer Society International Conference: Intellectual Leverage.

[6]  Stephen Hayne,et al.  Multi-user view integration system (MUVIS): an expert system for view integration , 1990, [1990] Proceedings. Sixth International Conference on Data Engineering.

[7]  Yuri Breitbart,et al.  Multidatabase Interoperability , 1990, SGMD.

[8]  Jonathan Eccles,et al.  The application of SSADM to modelling the logical structure of proteins , 1991, Comput. Appl. Biosci..

[9]  Karen A. Frenkel,et al.  The human genome project and informatics , 1991, CACM.

[10]  Dennis McLeod,et al.  Remote-Exchange: an approach to controlled sharing among autonomous, heterogeneous database systems , 1991, COMPCON Spring '91 Digest of Papers.

[11]  Gio Wiederhold,et al.  Mediators in the architecture of future information systems , 1992, Computer.

[12]  Wei Shen,et al.  Enterprise information modeling and model integration in carnot , 1992 .

[13]  Dennis McLeod,et al.  An Approach to Behavior Sharing in Federated Database Systems , 1992, IWDOM.

[14]  Timos K. Sellis,et al.  An Organizational Framework for Cooperating Intelligent Information Systems , 1992, Int. J. Cooperative Inf. Syst..

[15]  Erich J. Neuhold,et al.  Knowledge Based Integration of Heterogeneous Databases , 1992, DS-5.

[16]  Sandra Heiler,et al.  Distributed Object Management , 1992, Int. J. Cooperative Inf. Syst..

[17]  P. Fankhauser,et al.  Computing access relevance to support path-method generation in interoperable multi-OODB , 1993, Proceedings RIDE-IMS `93: Third International Workshop on Research Issues in Data Engineering: Interoperability in Multidatabase Systems.

[18]  Dennis McLeod,et al.  An Approach to Resolving Semantic Heterogenity in a Federation of Autonomous, Heterogeneous Database Systems , 1993, Int. J. Cooperative Inf. Syst..