Integrating a relational database system into VODAK using its metaclass concept
Author: Wolfgang Klas
Publisher:
Published: 1993
Total Pages: 35
ISBN-13:
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Metaclasses and Their Application
Author: Wolfgang Klas
Publisher: Springer Science & Business Media
Published: 1995-07-14
Total Pages: 220
ISBN-13: 9783540600633
DOWNLOAD EBOOKConventional object-oriented data models are closed: although they allow users to define application-specific classes, they usually come with a fixed set of modelling primitives. This constitutes a major problem, as different application domains, e.g. database integration or multimedia, need special support. Using an extended metaclass concept, this book provides for the solution of this problem a simple but extendible open object-oriented data model, a so-called RISC model. By introducing the basic concepts of the open object-oriented database management system VODAK, it demonstrates how the extended metaclass concept can be integrated homogeneously into object-oriented data models.
Database and Expert Systems Applications
Author: Vladimir Marik
Publisher: Springer Science & Business Media
Published: 1993-08-25
Total Pages: 788
ISBN-13: 9783540572343
DOWNLOAD EBOOKThis volume constitutes the proceedings of the 4th International Conference on Database and Expert Systems Applications (DEXA), held in Prague, Czech Republic, in September 1993. Traditionally the objective of the DEXA conferences is to serve as an international forum for the discussion and exchange of research results and practical experinece among theoreticians and professionals working in the field of database and artificial intelligence technologies. Despite the fact that in the conference title the applications aspect is mentioned explicitly, the theoretical and the practical points of view in the field are well-balanced in the program of DEXA'93. The growing importance of the conference series is outlined by the remarkably high number of 269 submissions and by the support given by renown organizations. DEXA'93 is held for the first time outside the former GDR in an East-European country, and is essentially contributing to the advancement of the East-West scientific cooperation in the field of database and AI systems. This proceedings contains the 78 contributed papers carefully selected by an international program committee with thesupport of a high number of subreferees. The volume is organized in sectionson data models, distributed databases, advanced database aspects, database optimization and performance evaluation, spatial and geographic databases, expert systems and knowledge engineering, legal systems, other database and artificial intelligence applications, software engineering, and hypertext/hypermedia and user interfaces.
Advances in Object-Oriented Database Systems
Author: Asuman Dogac
Publisher: Springer Science & Business Media
Published: 2013-11-09
Total Pages: 523
ISBN-13: 3642579396
DOWNLOAD EBOOKObject-oriented database management systems (OODBMSs) have generated significant excitement in the database community in the last decade. This interest stems from a real need for data management support for what are called "advanced application areas" that are not well-served by relational technology. The case for object-oriented technology has been made on three fronts. First is the data modeling requirements of the new applications. Some of the more important shortcomings of the relational systems in meeting the requirements of these applications include: 1. Relational systems deal with a single object type: a relation. A relation is used to model different real-world objects, but the semantics of this association is not part of the database. Furthermore, the attributes of a relation may come only from simple and fixed data type domains (numeric, character, and, sometimes, date types). Advanced applications require explicit storage and manipulation of more abstract types (e.g., images, design documents) and the ability for the users to define their own application-specific types. Therefore, a rich type system supporting user defined abstract types is required. 2. The relational model structures data in a relatively simple and flat manner. Non traditional applications require more complex object structures with nested objects (e.g., a vehicle object containing an engine object).
Transaction Management Support for Cooperative Applications
Author: Rolf A. de by
Publisher: Springer Science & Business Media
Published: 1997-12-31
Total Pages: 248
ISBN-13: 9780792381006
DOWNLOAD EBOOKTransaction Management Support for Cooperative Application is a comprehensive report on a successful international project, called TRANSCOOP, carried out from 1994 to 1997 by a group of European scientists. But the book is also much more than that, namely, an ambitious attempt to integrate Computer-Supported Cooperative Work (CSCW), Workflow Management Systems (WFMS), and Transaction Processing (TP) technologies. The very term {\em cooperative transactions} is in itself contradictory. Cooperation technologies, such as CSCW, aim at providing a framework for information exchange between cooperating (human) participants. In contrast, traditional transaction technologies allow concurrent users to operate on shared data, while providing them with the illusion of complete isolation from each other. To overcome this contradiction, the TRANSCOOP researchers had to come up with a new and original notion of correctness of concurrent executions, based on controlled exchange of information between concurrent users. Merging histories in accordance with prespecified commutativity rules among concurrent operations provides transactional guarantees to activities such as cooperative designing, which until now had to be carried out sequentially. As an interesting consequence, it also provides a basis for management of consistency between disconnected or mobile users who operate independently and yet, must occasionally reconcile their work with each other.
Database and Expert Systems Applications
Author:
Publisher:
Published: 1993
Total Pages: 796
ISBN-13:
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Author: Jens Mödeker
Publisher:
Published: 1999
Total Pages: 274
ISBN-13:
DOWNLOAD EBOOKObject-oriented Multidatabase Systems
Author: Omran Bukhres
Publisher:
Published: 1996
Total Pages: 752
ISBN-13:
DOWNLOAD EBOOKThe first book to use object-oriented techniques for multidatabase problems. The authors show how to solve the problems of databases talking to each other using an object-oriented approach.
Database Applications Semantics
Author: L. Mark
Publisher: Springer
Published: 2016-01-09
Total Pages: 608
ISBN-13: 0387349138
DOWNLOAD EBOOKThe number of new applications in need of database support is exploding and there is an increasing need to link and access database systems supporting these new applications via computer networks. End-users and non-computer experts are becoming heavily involved in the set-up, management and use of database systems and this book provides the important database design methodologies and implementation technology which should be available for them as well as for computer experts.
Information Modelling and Knowledge Bases IX
Author: Pierre-Jean Charrel
Publisher: IOS Press
Published: 1998
Total Pages: 360
ISBN-13: 9789051993967
DOWNLOAD EBOOKInformation modelling is the essential part of information system design. Design methods, specification languages, and tools tend to become application dependent, aiming at integration of methodologies stretching traditional database design to advanced knowledge bases, and including use of logical languages, and process oriented system description. The topics of the articles in this book cover a wide variety of themes in the domain of information modelling, specifications of information systems and knowledge bases, ranging from foundations and theories to systems construction and application studies. The contributions represent the following major themes: the use of ontologies in knowledge modelling concept modelling and conceptual modelling database modelling: applications of object-oriented modelling view integration and consistency checking modelling multimedia and multimedia models design methods process modelling formal systems.
