... 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
... and (ii) the evolution of its data management core in response to continuously changing application requirements. Most of the ... Manager); by harvesting the recent theoretical advances in this area into a unified framework, ADAM seeks to deliver practical ... an Information System (IS) reflects the changes occurring in the application reality that the IS is modelling: thus, ADAM exploits ...
Publication - krlis1337 - 04/17/2013 - 04:49 - 0 comments - 1 attachment
... application development lifecycle. The two primary schemas in an application, the conceptual model and the persistent database model, must ... model changes and the database and mapping must evolve in kind. We present a technique that, in most cases, allows those evolutions to ...
Publication - cat - 04/16/2013 - 20:38 - 0 comments - 0 attachments
... application development lifecycle. The two primary schemas in an application, the client conceptual object model and the persistent ... automatic evolution of object-relational mapping artifacts in the Microsoft Entity Framework. When starting with a valid mapping between ...
Publication - cat - 04/16/2013 - 20:05 - 0 comments - 1 attachment
... between abstraction levels. There exist several mechanisms in order to carry out propagations from one level to another, that are ... of modifications, is a time–consuming process. In this paper we propose a solution that is closer to the lazy and logical mechanisms, in which changes are delayed or not finally realized, respectively. This ...
Publication - jlloret - 04/16/2013 - 08:49 - 0 comments - 0 attachments
... are added, removed or updated rather often. Small changes in the database configurations might impact a large number of applications and ...
Publication - gpapas - 04/16/2013 - 07:27 - 0 comments - 0 attachments
... Venue: In International Workshop on Database Preservation (PresDB 07) ...
Publication - gpapas - 04/16/2013 - 07:05 - 0 comments - 1 attachment
... Venue: In 10th International Workshop on Exploring Modeling Methods for Systems Analysis and Design - EMMSAD '05 (in conjunction with CAISE'05) ...
Publication - gpapas - 04/16/2013 - 06:38 - 0 comments - 1 attachment
... Proceedings of the Workshop on Evolution and Change in Data Management (ECDM 2006), LNCS 4231, pp. 237-246 ... problems related to database evolution is how to reflect in the data level the changes that have occurred in the conceptual schema of ...
Publication - jlloret - 04/16/2013 - 06:05 - 0 comments - 0 attachments
... evolution is the process of applying changes to a schema in a consistent way and propagating these changes to the instances while the database is in operation. In this process there are two problems to consider: semantics of ...
Publication - cat - 04/16/2013 - 05:49 - 0 comments - 0 attachments
... Schema evolution occurs frequently in practice. In this paper, we show that the entire schema does not need to be redesigned ...
Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... 1 - 9 In this paper, we propose a schema versioning mechanism to manage the schema evolution in temporal object-oriented databases. The schema evolution management uses an ...
Publication - cat - 04/16/2013 - 04:38 - 0 comments - 0 attachments
... 210.1 KB In this paper, we visit the problem of the management of inconsistencies ...
Publication - gpapas - 04/16/2013 - 04:27 - 0 comments - 1 attachment
... Proc. Research Issues in Data Engineering (RIDE) URL: ...
Publication - cat - 04/16/2013 - 03:38 - 0 comments - 0 attachments
... 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
... 1 - 9 In this paper, we propose a methodology for managing database evolutions by ... The first ontology describes the changes occurring in a database application. The second one aims at characterizing techniques and ...
Publication - cat - 04/16/2013 - 02:38 - 0 comments - 0 attachments
... 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
... integrity of and dependencies between product data created in many different engineering applications. Most of these applications support ... of drawings and documents. Consequently, federations in engineering environments have to provide version management on their global ...
Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments
... 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
