Schema Evolution publication categorizer

... applications building on Semantic Web technology. In this paper we first present the conceptual architecture underlying ...

Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments

... 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

... invalid, and as a result, may become non-interpretable. In this paper, we address precisely this problem, validity of data instances ... one component imply semantic changes to other components in the ontology. Third, we propose a validity identification approach that ...

Publication - cat - 04/17/2013 - 13:27 - 0 comments - 0 attachments

... management systems (OODBMS) have enormous advantages in comparison to relational systems in modeling highly complex and dynamic application scenarios. Still they lack ...

Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments

... value and their structure. As the structure is described in the schema of the database, support for schema evolution is a highly ... which can be used to perform the required changes, even in the presence of populated databases and running applications. In this paper, ...

Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments

... errors and thus data structures must change accordingly in order to address the new requirements. A consequence of schema evolution is ...

Publication - cat - 04/17/2013 - 12:27 - 0 comments - 0 attachments

... problems. For instance, incorporating a new program in a legacy database application can create an integrity mismatch, since the ... different (e.g. standard file model versus OO model). In addition, neither the legacy DBMS (too weak to address integrity issues ...

Publication - huliganka - 04/17/2013 - 12:05 - 0 comments - 1 attachment

... with the use of program understanding methods and tools. In this paper, we focus on the program slicing technique and we show how it can ...

Publication - acleve - 04/17/2013 - 12:05 - 0 comments - 0 attachments

... 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

... to a perpetual evolution, which is particularly pressing in Web Information Systems, due to their distributed and often collaborative ... logical independence, and auditability of the process. In fact, PRISM exploits recent theoretical results on mapping composition, ...

Publication - krlis1337 - 04/17/2013 - 11:05 - 0 comments - 0 attachments

... approach for expressing and tracking changes in rule-based programs in the course of program evolution. To this end, we design an operator suite ...

Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments

... 10 - 49 Changes in the real world may require both the database population and the database schema to evolve. Particularly, this is the case in CAD/CAM and CASE database systems, in which the design objects constantly ...

Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 0 attachments

... a priori referenced by the local ontologies embedded in the various sources. When the shared ontology evolves over the time, the ... system turns to an asynchronous versioning problem. In this paper, we propose an approach and a model to deal with this problem in ...

Publication - cat - 04/17/2013 - 09:49 - 0 comments - 0 attachments

... have led to the adoption of data integration systems in order to deal with information extraction from disparate sources. The ... and ontologies has been recognized as a cornerstone issue in bringing in legacy data with formal semantic meaning. However, our knowledge ...

Publication - cat - 04/17/2013 - 09:49 - 0 comments - 0 attachments

... as a standard format for data representation on the web. In many application domains, specific document type definitions (DTDs) are ... a semantically agreed-upon structure of the XML documents. In XML context, these structural definitions serve as schemata. However, both ...

Publication - cat - 04/17/2013 - 09:16 - 0 comments - 0 attachments

... 10 - 49 In this paper we present a formal model for the support of temporal schema versions in object-oriented databases. Its definition is partially based on a generic ...

Publication - fgrandi - 04/17/2013 - 08:49 - 0 comments - 0 attachments

... and XQuery using the XML data type introduced by SQL/XML. In this tutorial we focus on DB2s XML support for schema evolution, especially ...

Publication - cat - 04/17/2013 - 08:16 - 0 comments - 1 attachment

... XML documents that satisfy a given schema, e.g., a DTD. In this context, when a given update violates the schema, it might be the ... to be used by a data administrator who is an expert in the domain of application of the database, but who is not required to be a ...

Publication - cat - 04/17/2013 - 07:27 - 0 comments - 0 attachments

... Schema evolution poses serious challenges in historical data management. Traditionally the archival data has been (i) ... or (ii) maintained under the original schema version in which they firstly appeared, leading to a perfect archival quality, but to a ...

Publication - krlis1337 - 04/17/2013 - 07:27 - 0 comments - 0 attachments

... more difficult and have thus far remained unsolved. In this paper, we address this issue by introducing a formal evolution model ... including the Genetic DB Ensembl (410+ schema versions in 9 years), and Wikipedia (240+ schema versions in 6 years). (Database ...

Publication - krlis1337 - 04/17/2013 - 06:49 - 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

... both ontologies and database schemas evolve over time in order to accommodate updated information needs. Once the ontology and the ... of the semantic mapping to reflect the new semantics in the ontology and the schema. In this paper, we propose a formulation of the ...

Publication - erhard - 04/17/2013 - 06:27 - 0 comments - 0 attachments

... Ontology evolution is increasingly gaining momentum in the area of Semantic Web research. Current approaches target the evolution in terms of either content, or change management, without covering both aspects ...

Publication - cat - 04/17/2013 - 05:49 - 0 comments - 0 attachments