The process of designing an object-oriented database schema consists of several phases. During the phase of abstract logical formalisation one of many possible abstract object-oriented database schemas must be chosen....
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Data mining is the discovery of knowledge and useful information from the large amounts of data stored in databases. The emerging data mining tools and systems lead to the demand of a powerful data mining query langua...
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A generic graphical query language for ODMG-compliant objectdatabases – called Unified Query By Example (UQBE) – is proposed, based on the ideas of Zloof’s Query-By-Example, and using UML-like diagrams as schema n...
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This paper presents IODBCON (Integrated object Database for Construction), an interactive system for integrating CAD and construction related applications to address the problems of design fragmentation and the gap th...
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ISBN:
(纸本)9729805024
This paper presents IODBCON (Integrated object Database for Construction), an interactive system for integrating CAD and construction related applications to address the problems of design fragmentation and the gap that exists between construction and design processes. It provides a vehicle for storing architectural design information in an integrated construction object-oriented database that can be shared by a range of construction applications. The IODBCON model uses the object-oriented modelling approach to establish standard models for architectural design that comply with Industry Foundation Classes (IFC) for common interpretation of construction design objects and with CORBA (Common object Request Broker Architecture) for distribution of the objects amongst the construction applications.
Implementors of garbage collection algorithms are, in general, faced with determining a number of policy decisions such as when to collect, how to collect space or how to interact with the running application. With ma...
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Spatio-temporal extensions to data models have been an active area of research for a number of years. To date, much of this work has focused on the relational data model, with object data models receiving far less con...
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We have previously studied the possible performance gain from using the log-only approach to realize temporal object database systems. Although the log-only approach in its basic form is relatively straightforward, it...
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The opening of the databases towards the new applications of increased complexity requires to re-examine the way of designing the database conceptual schema. Indeed, it would be desirable that the schema can be a spec...
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More than ever before schema transformation is a prevalent problem that needs to be addressed to accomplish for example the mi- gration of legacy systems to the newer OODB systems, the generation of structured web pag...
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A formalization of object-oriented database concepts in the context of algebraic specifications with implicit state is proposed. An object database schema is represented as a dynamic system and an object database inst...
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