Results 81 to 90 of about 1,291 (119)

Einsatz OODBMS in der Praxis: Ein Triathlon

1997
Die erste Disziplin des Triathlons ist das Schwimmen: Eine Evaluation der marktgangigen Produkte muss fur den praktischen Einsatz vorgenommen werden. Als Bewertungskriterien gelten Machtigkeit der Modellierung, Integration in die Entwicklungsumgebung, Unterstutzung der Schema-evolution, Sprachschnittstelle inkl.
Andreas Meier, Peter Bachmann, André Madörin, Philipp Nussbaum, Stefan Scherrer, Markus Stettier, Urs Tonazzi, Hanspeter Weber, Thomas Wüst   +8 more
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Using the F2 OODBMS to support incremental knowledge acquisition

Proceedings International Database Engineering and Applications Symposium, 2003
Ripple down rules (RDR) is an incremental knowledge acquisition (KA) methodology, where a knowledge base (KB) is constructed as a collection of rules with exceptions. Nested ripple down rules (NRDR) is an extension of this methodology which allows the expert to enter her/his own domain concepts and later refine these concepts hierarchically.
L. Ai-Jadir, G. Beydoun
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Incremental inheritance model for an OODBMS

1997
The semantics of inheritance presented in this paper is based on the incremental modification mechanism that is formalized by the generator associated with class, modification function, and the building inheritance operators. The model is based upon an intuitive explanation of the proper use and purpose of inheritance, and is essentially dedicated to ...
Mohammed Benattou, Lotfi Lakhal
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A new data abstraction layer required for OODBMS

Proceedings of the 1997 International Database Engineering and Applications Symposium (Cat. No.97TB100166), 2002
A 'class' in the object-oriented paradigm represents both interface and implementation of the class. However, interface and implementation of a class are needed for different purposes, since class interface is shared among most users, while class implementation is used only by the implementers of the class.
null Eun-Sun Cho, null Sang-Yong Han, null Hyoung-Joo Kim   +2 more
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Visibility Issues in an active OODBMS

1996
We discuss the design and implementation of an active object-oriented database built upon Gemstone, and an associated debugger. We concentrate upon the issue of visibility of ‘wrapping’ code, explaining why it is desirable for users of our system to be able to access and debug the code in both its ‘raw’ form and with the wrapping code hidden.
Ian S. Thomas, Andrew C. Jones
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Functional Programming Formalisms for OODBMS Methods

1994
Two well-studied functional formalisms in the theory of programming languages are (1) applicative program schemas and (2) typed lambda calculi. We relate these programming formalisms to object-oriented databases (OODBs) and in particular to the description of methods.
Gerd Hillebrand, Paris Kanellakis, Sridhar Ramaswamy   +2 more
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Querying structured documents with hypertext links using OODBMS

Proceedings of the 1994 ACM European conference on Hypermedia technology - ECHT '94, 1994
Hierarchical logical structure and hypertext links are complementary and can be combined to build more powerful document management systems. Previous work exploits this complementarity for building better document processors, browsers and editing tools, but not for building sophisticated querying mechanisms. Querying in hypertext has been a requirement
V. Christophides, A. Rizk
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Fine-grained sharing in a page server OODBMS

Proceedings of the 1994 ACM SIGMOD international conference on Management of data, 1994
For reasons of simplicity and communication efficiency, a number of existing object-oriented database management systems are based on page server architectures; data pages are their minimum unit of transfer and client caching. Despite their efficiency, page servers are often criticized as being too restrictive when it comes to concurrency, as existing ...
Michael J. Carey, Michael J. Franklin, Markos Zaharioudakis   +2 more
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Implementing NRDR Using OO Database Management System (OODBMS)

2002
Motives for using a database management system (DBMS) to build a knowledge base system (KBS), include KBS's lack of ability to manage large sets of rules, to control concurrent access and to manage multiple knowledge bases simultaneously. In work, we build a KBS using a database management system DBMS for its schema evolution ability.
Ghassan Beydoun, Lina Al-Jadir
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An introduction to schema versioning in OODBMS

Proceedings of 7th International Conference and Workshop on Database and Expert Systems Applications: DEXA 96, 2002
Object oriented database management systems (OODBMS) have enormous advantages in comparison to relational systems in modeling highly complex and dynamic application scenarios. Still they lack some flexibility which could help their promotion into widely spread industrial use.
openaire   +1 more source