Titlebook: OOIS’97; 1997 International C Maria E. Orlowska,Roberto Zicari Conference proceedings 1998 Springer-Verlag London Limited 1998 C++ programm

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Conference proceedings 1998directions and potential for object -oriented information systems. The papers included in the proceedings consist of various aspects of object-oriented concepts and they have been presented to the reader under the following thematic sections: Object Oriented Methodologies Query Processing Modelling

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Object-Oriented Information Systems in the 21st Centurytional database systems will soon become the platforms of choice for new information systems, and the object/component technologies of CORBA, COM, and JavaBeans are becoming the basis for implementing large-scale distributed information systems. This talk will trace some of the early developments in

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Systems Oriented Analysis and Design Directions: A Suggested Evolution from the Object Modelcs. Systems Science. is the science of understanding complex systems. The increasing complexity of, and failures in the software industry., demonstrate the need for a better control model. The science of . is the logical framework for the evolution of the object model. A . object model is suggested.

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Query Evaluation in an Object-Oriented Multimedia Mediatorsign employs proxy objects for external multimedia items and introduces a new concept of semi-structured and self-describing types for multimedia items. Query evaluation and optimization hide all details of communication with external sources and explore the external parallel computation capacities,

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A Concatenated Signature Scheme on Path Dictionary for Query Processing of Composite Objectsject-oriented database systems, especially when we deal with composite objects. To tackle the issue, we propose a c-signature scheme, which is a combined approach with the path dictionary. In the c-signatures, the signatures are abstracted from objects in a path in concatenation and stored in class-

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