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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

How to version schemas

... and schema objects is badly needed by us all, especially in complex, multi-enterprise development situations. This paper describes how ... and schema development are essentially synonymous, in that the applicable techniques and requisite technology are the same for ...

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

Evolution of XML-based mediation queries in a data integration system

... Proc. 3rd ER-Workshop Evolution and Change in Data Management (ECDM 2004), LNCS 3289 ... 1 - 9 One of the main challenges in data integration systems is the maintenance of the mappings between the ...

Publication - cat - 04/16/2013 - 08:49 - 0 comments - 0 attachments

ROVER: A Framework for the Evolution of Relationships

... the myriad of possible change semantics a user may desire in the future, any pre-defined set is not sufficient. Rather we present a ... invariants, can be a very expensive re-engineering effort. In this paper we present an approach that de-couples the constraints from the ...

Publication - cat - 04/16/2013 - 02:49 - 0 comments - 1 attachment

Dealing with Version Pertinence to Design an Efficient Schema Evolution Framework

... versioning, and emulation at the instance level). In addition, we introduce the concept of class/schema version pertinence ...

Publication - cat - 04/16/2013 - 01:38 - 0 comments - 0 attachments

An evolution-based approach for assessing ontology mappings - A case study in the life sciences

... Proc. of 13. GI-Fachtagung für Datenbanksysteme in Business, Technologie und Web (BTW) ... and more robust ontology mappings. The approach is generic in that it can be applied independently from the utilized match technique. We ...

Publication - hartung - 04/16/2013 - 00:16 - 0 comments - 1 attachment

Semantically Extensible Schemas for Web Service Evolution

... are designed for loosely coupled systems, which means that in many cases it is not possible to synchronously upgrade all peers of a Web ... Instead, Web Service peers should be able to coexist in different versions. Additionally, older software versions often could ...

Publication - cat - 04/15/2013 - 23:49 - 0 comments - 0 attachments

A Procedural Approach to Schema Evolution

... If not performed with care, updates can cause problems. In this paper, we present a procedure which safely adds a fact type to a ...

Publication - cat - 04/15/2013 - 21:38 - 0 comments - 1 attachment