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An object-oriented data model for distributed office applications

Authors:

E. Bertino,

M. Negri,

G. Pelagatti,

L. SbattellaAuthors Info & Claims

COCS '90: Proceedings of the ACM SIGOIS and IEEE CS TC-OA conference on Office information systems

Pages 216 - 226

https://doi.org/10.1145/91474.91544

Published: 01 March 1990 Publication History

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Abstract

The object-oriented paradigm is becoming very popular for database applications and several object-oriented DBMSs have been developed. A basic notion in this paradigm is the inheritance hierarchy that allows the users to define objects and the associated operations starting from already defined objects. However, in database applications the inheritance hierarchy must provide a conceptual modeling function, in addition to the re-usability function. Another important requirement is to provide support for data distribution in (possibly) heterogeneous environments. This means that object implementation may differ depending on the object location. This paper presents a model that decouples these two aspects, modeling vs implementation, by using the concept of abstract and implementation classes. An abstract class specifies properties and methods for a set of similar objects, like in other object-oriented data models. An abstract class is however independent of the object implementation and location. An implementation class defines the implementation of an abstract class. In our model an abstract class may have several implementations. This allows the user to provide different implementations for the same set of objects, without requiring the objects to change class.

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Cited By

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Vossen G(1995)On formal models for object-oriented databasesACM SIGPLAN OOPS Messenger10.1145/219260.2192626:3(1-19)Online publication date: 1-Jul-1995
https://dl.acm.org/doi/10.1145/219260.219262
Ouksel ANaiman C(1994)Coordinating context building in heterogeneous information systemsJournal of Intelligent Information Systems10.1007/BF009629773:2(151-183)Online publication date: 1-Apr-1994
https://dl.acm.org/doi/10.1007/BF00962977
Schill A(1992)Controlling dynamic object transfer between distributed repositoriesEleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings]10.1109/PCCC.1992.200554(164-171)Online publication date: 1992
https://doi.org/10.1109/PCCC.1992.200554
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An object-oriented data model for distributed office applications

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Published In

COCS '90: Proceedings of the ACM SIGOIS and IEEE CS TC-OA conference on Office information systems

March 1990

291 pages

ISBN:0897913582

DOI:10.1145/91474

Editors:
Frederick H. Lochovsky
Univ. of Toronto, Toronto, Canada
,
Robert B. Allen

ACM SIGOIS Bulletin Volume 11, Issue 2-3
Apr. 1990
288 pages
ISSN:0894-0819
DOI:10.1145/91478
Editors:
Frederick H. Lochovsky
Univ. of Toronto, Toronto, Canada
,
Robert B. Allen
Issue’s Table of Contents

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 01 March 1990

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IEEE-CS\TCDA
SIGGROUP

COIS90: Conference on Office Infor. Systems

April 25 - 27, 1990

Massachusetts, Cambridge, USA

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Cited By

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Vossen G(1995)On formal models for object-oriented databasesACM SIGPLAN OOPS Messenger10.1145/219260.2192626:3(1-19)Online publication date: 1-Jul-1995
https://dl.acm.org/doi/10.1145/219260.219262
Ouksel ANaiman C(1994)Coordinating context building in heterogeneous information systemsJournal of Intelligent Information Systems10.1007/BF009629773:2(151-183)Online publication date: 1-Apr-1994
https://dl.acm.org/doi/10.1007/BF00962977
Schill A(1992)Controlling dynamic object transfer between distributed repositoriesEleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings]10.1109/PCCC.1992.200554(164-171)Online publication date: 1992
https://doi.org/10.1109/PCCC.1992.200554
Bertino E(1991)Method precomputation in object-oriented databasesACM SIGOIS Bulletin10.1145/127769.12285212:2-3(199-212)Online publication date: 1-Oct-1991
https://dl.acm.org/doi/10.1145/127769.122852
Bertino ELochovsky F(1991)Method precomputation in object-oriented databasesProceedings of the conference on Organizational computing systems10.1145/122831.122852(199-212)Online publication date: 1-Oct-1991
https://dl.acm.org/doi/10.1145/122831.122852
Bertino E(1991)Integration of heterogeneous data repositories by using object-oriented views[1991] Proceedings. First International Workshop on Interoperability in Multidatabase Systems10.1109/IMS.1991.153681(22-29)Online publication date: 1991
https://doi.org/10.1109/IMS.1991.153681
Williams NS Blair G(2019)Distributed multimedia applicationsComputer Communications10.1016/S0140-3664(05)80016-717:2(119-132)Online publication date: 4-Jan-2019
https://dl.acm.org/doi/10.1016/S0140-3664%2805%2980016-7

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