... We are concerned by schema evolution in Object Oriented Databases (OODB) that is processed by a modification on the ... a new categorization of the different modifications in three categories : primitive, composite and complexe modifications. On ...
Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments
... and extension) are available. The strategy of evolution in which our architecture is based is that of lsquoforward database ... down to the logical schema and to the extension. In order to put into practice this strategy, each component of a database is ... a translation information system is considered in order to manage the translation of conceptual elements into logical schema ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... schema evolution, standard information systems currently in use raise challenging evolution problems. This paper examines database ... and describe a CASE tool that can assist developers in their task of system evolution. We illustrate our approach with Biomaze, a ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... of semantical concepts, but only technical schema changes. In this paper we present our mapping of database schemas to ontologies, ...
Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments
... CompEuro93; Computers in Design URL: ... transaction time and valid time are added to the data. In this context, the modification of the schema which a database management ...
Publication - cat - 04/17/2013 - 06:49 - 0 comments - 0 attachments
... of integrated Web data. One of the main challenges in these systems is to deal with the volatile and dynamic nature of Web sources. In this work we address the effects of adding/removing/changing Web sources and ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 0 attachments
... how such stability should be observed and measured in the operational business environment with evolving information needs and ...
Publication - cat - 04/17/2013 - 04:16 - 0 comments - 1 attachment
... http://tumb1.biblio.tu-muenchen.de/publ/diss/in/2000/blaschka.pdf Citations: ... Processing)deploy the multidimensional data model in order to describe the application domain. Consequently, OLAP systems are ...
Publication - cat - 04/16/2013 - 18:16 - 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
... systems, the generation of structured web pages from data in database systems, or the integration of systems with different native data ... at the deferred execution approach for schema evolution in an effort to improve availability of the system, to the best of our ...
Publication - cat - 04/16/2013 - 07:49 - 0 comments - 1 attachment
... views that determine its schema and its content in terms of the schema and the content of the data sources. DW applications ... against the cost of maintaining the materialized views. In an evolving DW application, new queries need to be answered by the DW. An ...
Publication - cat - 04/16/2013 - 04:49 - 0 comments - 1 attachment
... Proc. 3rd Int. Workshop on Evolution and Change in Data Management (ECDM 2004), LNCS 3289 ... can be considered a combination ofschema evolution, in which the structure evolves with the addition and deletion of attributes and ...
Publication - cat - 04/16/2013 - 04:05 - 0 comments - 1 attachment
... histories of the schema objects should be traceable. In this paper we propose a method for managing schema changes by exploiting ...
Publication - cat - 04/16/2013 - 03:38 - 0 comments - 0 attachments
... mechanism is a pertinent way to implement specialization in an object database and differs from the classical mechanism used in most object-oriented database systems. It supports multiple instantiation, ...
Publication - cat - 04/16/2013 - 02:38 - 0 comments - 1 attachment
Authors: Benatallah, B Author: Benatallah, B Year: ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 1 attachment
... There is much current interest in publishing and viewing databases as XML documents. The general benefits of ... for visualizing and processing information encoded in this universal standard. In this paper, we explore the additional and unique ...
Publication - cat - 04/16/2013 - 02:16 - 0 comments - 0 attachments
... decisions called protocolling. These concepts are realized in Presto, a development environment for an evolutionary design of database ...
Publication - cat - 04/16/2013 - 01:49 - 0 comments - 0 attachments
... that alternative schema perspectives seems to be needed, in addition to revision-like changes. The primary goal is to support change ...
Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments
... 10 - 49 In this paper we address the problem of schema evolution in object-oriented database systems. Most currently available database ...
Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments
... 785.12 KB In heterogeneous data warehousing environments, autonomous data sources are ... data sources and the integrated database may be expressed in different modelling languages. It is possible for either the data source ... of the schema, or evolution of the modelling language in which the schema is expressed, or both. In such scenarios, it is important ...
Publication - cat - 04/15/2013 - 22:49 - 0 comments - 1 attachment
... 252.55 KB An important issue in data integration is the integration of semantically equivalent but ... source restructuring for such databases have been proposed in the literature, such as the SQL extension SchemaSQL. However, the issue of incremental maintenance of views defined in such languages remains an open problem. We present an incremental view ...
Publication - cat - 04/15/2013 - 22:27 - 0 comments - 1 attachment
