Search: in, Schema Evolution, no paper type

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The management of changing types in an object-oriented database

... KB We examine the problem of type evolution in an object-oriented database environment. Type definitions are persistent objects in the database and as such may be modified and shared. The effects of changing ...

Publication - cat - 06/15/2023 - 14:51 - 0 comments - 1 attachment

Managing Multiple Ontologies and Ontology Evolution in Ontologging.

... 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

Evolution - The Other Side of the XML Update Coin

... systems support updates operations via special APIs. In all update languages the content and the structure of documents can be ... the XML schema after or during accomplishing an update. In this article, we suggest different architectures for processing such ...

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

Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach

... integration and schema evolution into one framework. In previous work we have developed a general framework to support schema transformation and integration in heterogeneous database architectures. Here we show how this framework also ...

Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments

Schema evolution in object databases by catalogs

... 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

A Unifying Framework for Version Control in a CAD Environment

... 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

An Architecture for Managing Database Evolution

... 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

Reverse engineering of relational databases: Extraction of an EER model from a relational database

... These have been demonstrated to be implementable in a knowledge-based system; a working prototype system which does so is briefly discussed. In addition, cases in which human input is required are also clearly identified. This research ...

Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment

Ontology Versioning in an Ontology Management Framework

... and collaborative process, developers face challenges in managing multiple ontologies, including comparing, aligning, and merging ... different formalisms. The uniform framework presented in this article assists users with these tasks by leveraging data and algorithms developed for one tool in other tools. (Journal, no paper type, Ontology Alignment, Ontology ...

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

On Schema Evolution in Multidimensional Databases

... on a logical level (e.g. OLAP systems) are often used in data warehouse environments. The user requirements in these dynamic application areas are subject to frequent changes. This ...

Publication - cat - 04/17/2013 - 12:49 - 0 comments - 1 attachment

Schema evolution and integration

... support scheme is distinguished from previous mechanisms in that it is primarily concerned with preserving existing database objects and ...

Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment

Schema evolution in OODBs using class versioning

... out on a model for the versioning of class definitions in an object-oriented database. By defining update and backdate functions on ... an old version of the schema to still use data created in the format of the changed schema. (no paper type, object-oriented, ...

Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment

The CVS Algorithm for View Synchronization in Evolvable Large-Scale Information Systems

... Current view technology supports only static views in the sense that views become undefined and hence obsolete as soon as the ... view definitions to be dynamically evolved to keep them in synch with evolving ISs. We present in this paper a general strategy for the ...

Publication - cat - 04/17/2013 - 12:27 - 0 comments - 1 attachment

Wrapper-based evolution of legacy information systems

... 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

Data Reverse Engineering using System Dependency Graphs

... 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

Database application evolution: a transformational approach

... 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

Co-transformations in Database Applications Evolution

... Generative and Transformational Techniques in Software Engineering, Lecture Notes in Computer Science 4143, 2006 URL:  ...

Publication - acleve - 04/17/2013 - 11:38 - 0 comments - 1 attachment

A Coevolution Approach for Database Schemas and Related Ontologies

... 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

Evolution of rule-based programs

... 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

Quantifying Schema Evolution

... Achieving correct changes is the dominant activity in the application software industry. Modification of database schemata is ... of a large-scale database application currently running in several hospitals in the UK are presented and interpreted. The kind of ...

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

EXPRESS: A Data EXtraction, PRocessing, and REStructuring System

... for accessing source data. The restructuring specified in CONVERT is compiled into a set of customized PL/l procedures to derive ... requests. The architecture of EXPRESS allows efficiency in execution by avoiding unnecessary secondary storage references while at the ...

Publication - erhard - 04/17/2013 - 10:16 - 0 comments - 0 attachments

A Model for Compound Type Changes Encountered in Schema Evolution

... and then produces a transformer that can update data in a database to correspond to a newer version of the schema. (no paper ...

Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 1 attachment

Evolution Support in Large-Scale Interoperable Systems: a Metadata Driven Approach

... cost and effort required for maintaining the federation in a consistent state after its launch. If only human intervention is to be ... of change at both local and federal conceptual levels in interoperating database systems. The basis for the model is the exploitation ...

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

Schema Transformation Techniques for Database Reverse Engineering

... DBRE is proposed as a two-phase process consisting in recovering the DBMSdependent data structures (data structure extraction) then in recovering their semantics (data structure conceptualization). The second ...

Publication - cat - 04/17/2013 - 09:38 - 0 comments - 1 attachment

Updating Relational Databases through Object-Based Views

... 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