... Skarra, A Zdonik, S ... such may be modified and shared. The effects of changing a type extend to objects of the type and to programs that use objects of the ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 1 attachment
... Maedche, A.; Motik, B.; Stojanovic, L.; Studer, R.; Volz, R. ... Maedche, A Motik, B ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments
... 1 - 9 Updates for XML are a quite new research area. Many applications need not only to transform or ... them reject updates that violate the schema, others entail a schema evolution that generalizes the schema. We point out necessary ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 0 attachments
... McBrien, P; Poulovassilis, A Author: ... Poulovassilis, A Year: ...
Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments
... Pons, A; Keller, R. K. Author: Pons, A Keller, R ...
Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments
... design (CAD) systems. In this paper we address a broad spectrum of semantic and operational issues in version control for a public/private distributed architecture of CAD systems. The research issues ...
Publication - cat - 07/28/2016 - 08:29 - 0 comments - 0 attachments
... to put into practice this strategy, each component of a database is seen under this architecture as the information base of an information system. Furthermore, a translation information system is considered in order to manage the ... of conceptual elements into logical schema elements. A current Oracle implementation of this architecture is also presented. ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... 11.7 KB A methodology for extracting an extended Entity-Relationship (EER) model from a relational database is presented. Through a combination of data schema and data instance analysis, an EER model is ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
... Noy, Natalya Fridman; Musen, Mark A. Author: ... As ontology development becomes a more ubiquitous and collaborative process, developers face challenges in ...
Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments
... 277.31 KB Database systems offering a multidimensional schema on a logical level (e.g. OLAP systems) are often used in data warehouse ...
Publication - cat - 04/17/2013 - 12:49 - 0 comments - 1 attachment
... on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution andinstance ... compatibility for old applications, while permitting a wider range of evolution operations. It achieves this by supporting schema ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
... KB This paper describes work carried out on a model for the versioning of class definitions in an object-oriented database. ... on attributes of the previous and current version of a class definition, instances of any version of the class can be converted to ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
... Nica, A; Lee, AJ; Rundensteiner, EA Author: Nica, A Lee, A ...
Publication - cat - 04/17/2013 - 12:27 - 0 comments - 1 attachment
... severe heterogeneity problems. For instance, incorporating a new program in a legacy database application can create an integrity mismatch, since the ...
Publication - huliganka - 04/17/2013 - 12:05 - 0 comments - 1 attachment
... Cleve, A; Henrard, J.; Hainaut, JL; Author: Cleve, A Henrard, J ...
Publication - acleve - 04/17/2013 - 12:05 - 0 comments - 0 attachments
... to database schemas, to data and to programs through a general strategy. This strategy requires the documentation of database ... techniques. Our approach, called DB-MAIN, relies on a generic database model and on transformational paradigm that states that ... can be modeled by schema transformations. Indeed, a transformation provides both structural and instance mappings that formally ...
Publication - huliganka - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... Cleve, A Hainaut, J ... range: n/a Attachment Size ...
Publication - acleve - 04/17/2013 - 11:38 - 0 comments - 1 attachment
... Kupfer, A Eckstein, S ... integration and meta-databases, by connecting databases on a semantical level. Still, everything fails when one of the database schemas ...
Publication - cat - 04/17/2013 - 11:05 - 0 comments - 0 attachments
... analysers, and program transformations. We provide a pragmatic, transformation-based approach for expressing and tracking changes ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... for database applications. The paper presents a method for measuring modifications to database schemata and their consequences, by using a thesaurus tool. Measurements of the evolution of a large-scale database application currently running in several hospitals in ...
Publication - cat - 04/17/2013 - 10:27 - 0 comments - 0 attachments
... prototype data translation system which can access a wide variety of data and restructure it for new uses. The system is driven ... presented. The DEFINE description is compiled into a customized PL/l program for accessing source data. The restructuring ...
Publication - erhard - 04/17/2013 - 10:16 - 0 comments - 0 attachments
... 420.56 KB Schema evolution is a problem that is faced by long-lived data. When a schema changes, existing persistent data can become inaccessible unless the ... the database maintainer can perform. We have developed a model of type changes involving multiple types. The model describes both type ...
Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 1 attachment
... N Jones, A Gray, W ... cost and effort required for maintaining the federation in a consistent state after its launch. If only human intervention is to be ...
Publication - cat - 04/17/2013 - 10:05 - 0 comments - 0 attachments
... range: n/a Attachment Size ... 29.2 KB The paper presents a DBMS-independent database reverse engineering (DBRE) methodology based on a ...
Publication - cat - 04/17/2013 - 09:38 - 0 comments - 1 attachment
... N Keller, A Wiederhold, G ... The view-object model provides a formal basis for representing and manipulating object-based views on ...
Publication - erhard - 04/17/2013 - 09:38 - 0 comments - 0 attachments
