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... of the most important functions which need to be supported in integrated computer-aided design (CAD) systems. In this paper we address a broad spectrum of semantic and operational issues in ...
Publication - cat - 07/28/2016 - 08:29 - 0 comments - 0 attachments
... manipulating object-based views on relational databases. In this paper, we present a scheme for handling update operations on view ...
Publication - erhard - 04/17/2013 - 09:38 - 0 comments - 0 attachments
... and sharability to objects created and manipulated in applications implemented in an object-oriented programming environment. One of the important ... make a wide variety of changes to the database schema. In this paper, following a brief review of the object-oriented data model that ...
Publication - cat - 04/17/2013 - 06:05 - 0 comments - 0 attachments
... conversion functions: immediate or lazy database updates. In this paper, we concentrate our attention to the definition of implementation ...
Publication - cat - 04/16/2013 - 19:38 - 0 comments - 1 attachment
... which takes evolution into account. Its originality is in allowing the development of partial schema versions, or views of a schema. These versions are created in the same database from a common schema. We define the set of authorised ...
Publication - cat - 04/16/2013 - 11:38 - 0 comments - 1 attachment
... system is modified, the database needs to be changed in such a way that the schema and the database remain consistent with each other. This paper describes the algorithm implemented in the new forthcoming release of the O2 object database for automatically ...
Publication - cat - 04/16/2013 - 11:27 - 0 comments - 1 attachment
... The evolution of an information system is reflected in data modeling by database reorganization. Entity-Relationship (ER) ...
Publication - erhard - 04/16/2013 - 11:05 - 0 comments - 1 attachment
... of these system components to the real-world environment in which the information system is intended to function. A decision-centered ...
Publication - cat - 04/16/2013 - 01:38 - 0 comments - 1 attachment
... have been proposed and implemented. However, research in versions has been focused exclusively on versioning single design objects. In a multi-user design environment where the schema (definition) of the ...
Publication - cat - 04/15/2013 - 21:05 - 0 comments - 1 attachment