We describe function materialization as an optimization concept in object-oriented databases. Exploiting the object-oriented paradigm-namely classification, object identity, and encapsulation-facilitates a rather easy...
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The design of a large database management system on top of an object-oriented platform which is implemented on a tightly coupled multiprocessor system requires a large number of design decisions. There exist no method...
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Integrity maintenance in object-oriented systems has so far received little attention. This paper is an attempt to fill this gap. It describes a mechanism for maintaining integrity in an object- oriented database, imp...
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We provide a general framework to study the notion of abstraction in pure object-oriented database models with query languages based on object creation. Abstraction is the key operation to express structured values li...
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A theoretical model for analyzing the behavior of method execution in object-oriented databases (OODBs) is introduced and used to study issues of reachability, nontermination, and well-typedness in the context of rest...
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作者:
Van den Bussche, Jan
Dept. Math. & Comp. Science Universiteitsplein 1 AntwerpB-2610 Belgium
We provide a general framework for declarative selection operations for complex objectdatabases, based on the safe calculus for complex objects. Within this framework, we consider a class of "single pass-evaluab...
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作者:
Ammar, RedaZhang, PingU155
Computer Science & Engineering Department University of Connecticut StorrsCT06268 United States
This paper presents the general structure of a design and modeling environment for real-time, parallel/distributed software systems. It is provided for the designer to cope with different modeling and analysis methods...
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We describe a model of transactions and concurrency control that supports cooperative task and data sharing among users. The model augments traditional correctness criteria, such as global consistency for individual t...
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Database design involves a set of activities, which include requirements analysis, conceptual database design, selection of a database management system, mapping from conceptual model to physical model, and the physic...
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The author will not pretend to be unbiased in the matter of comparing the deductive and object-oriented approaches to new database systems;he believes that despite some important concepts originating with the object-o...
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