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Galaxy: Encouraging data sharing among sources with schema variants

... Mork, P; Seligman, L; Morse, M.;Rosenthal, A; Author:  ... Rosenthal, A. Wolf, C. ...

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

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

... 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

Information Systems Integration and Evolution: Ontologies at Rescue

... Curino, Carlo A.; Tanca, Letizia; Zaniolo, Carlo ... 472.64 KB The life of a modern Information System is often characterized by (i) a push toward integration with other systems, and (ii) the evolution of its ...

Publication - krlis1337 - 04/17/2013 - 04:49 - 0 comments - 1 attachment

Automated Co-evolution of Conceptual Models, Physical Databases, and Mappings

... the database and mapping must evolve in kind. We present a technique that, in most cases, allows those evolutions to progress ...

Publication - cat - 04/16/2013 - 20:38 - 0 comments - 0 attachments

Worry-free database upgrades: automated model-driven evolution of schemas and complex mappings

... Terwilliger, JF; Bernstein, PA; Unnithan, A Author:  ... in the Microsoft Entity Framework. When starting with a valid mapping between client and store, MoDEF translates changes made to a ...

Publication - cat - 04/16/2013 - 20:05 - 0 comments - 1 attachment

Model-Driven, View-Based Evolution of Relational Databases

... J Rubio, A Zapata, M ... implies the immediate realization of modifications, is a time–consuming process. In this paper we propose a solution that is closer ...

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

Hecataeus: A What-If Analysis Tool for Database Schema Evolution

... Small changes in the database configurations might impact a large number of applications and data stores around the system: queries and ... application programs might crash. HECATAEUS is a tool, which represents the database schema along with its dependent workload, ...

Publication - gpapas - 04/16/2013 - 07:27 - 0 comments - 0 attachments

Hecataeus: A Framework for Representing SQL Constructs as Graphs

... workflows). In this paper, we first introduce and sketch a graph-based model that that uniformly captures relations, views, constraints and queries. We then present Hecataeus, a tool for implementing and visualizing the above framework (Database s.e., ...

Publication - gpapas - 04/16/2013 - 06:38 - 0 comments - 1 attachment

Evolving the Implementation of ISA Relationships in EER Schemas

... J Rubio, A Zapata, M ... changes that have occurred in the conceptual schema of a database. This is specially relevant when evolution operations affect ISA ...

Publication - jlloret - 04/16/2013 - 06:05 - 0 comments - 0 attachments

Primitive operations for schema evolution in ODMG databases

... Schema evolution is the process of applying changes to a schema in a consistent way and propagating these changes to the instances while the ...

Publication - cat - 04/16/2013 - 05:49 - 0 comments - 0 attachments

Characterization of the effects of schema change

... entire schema does not need to be redesigned every time a change is made. We characterize the subschema affected by basic schema ... allows us to limit the scope of checking required and have a guarantee of the overall design being correct (safe changes). In addition, we ...

Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments

Change Management for a Temporal Versioned Object-Oriented Database

... 1 - 9 In this paper, we propose a schema versioning mechanism to manage the schema evolution in temporal ...

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

Rule-based Management of Schema Changes at ETL sources

... Papastefanatos, G.; Vassiliadis, P.; Simitsis, A.; Sellis, T.; Vassiliou, Y. Author:  ... P Simitsis, A Sellis, T ...

Publication - gpapas - 04/16/2013 - 04:27 - 0 comments - 1 attachment

Engineering for Conceptual Schema Flexibility

... enough to accommodate future changes. This paper presents a comparative review of a dozen current engineering approaches as to which mechanisms they employ to ...

Publication - cat - 04/16/2013 - 03:38 - 0 comments - 0 attachments

ROVER: A Framework for the Evolution of Relationships

... Claypool, K.T.; Rundensteiner, E.A.; Heineman, G.T. Author:  ... propose comprehensive support for relationship evolution. A complete schema evolution facility for any OODB system must provide (1) ...

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

Supporting database evolution: Using ontologies matching

... 1 - 9 In this paper, we propose a methodology for managing database evolutions by exploiting two ontologies. 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

Dealing with Version Pertinence to Design an Efficient Schema Evolution Framework

... This paper addresses the design of a schema evo- lution framework enabling an efficient management of object ... we provide operations for immediate refreshing of a database to enable an ef- ficient manipulation of versions by a large ...

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

Version Propagation in Federated Database Systems

... based on federated database technology, are, among others, a means to control the integrity of and dependencies between product data ... these applications support the management of versions of a product and its parts, continuing the engineers' tradition of keeping ...

Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments

HECATAEUS: Regulating Schema Evolution

... Papastefanatos, G.; Vassiliadis, P.; Simitsis, A.; Vassiliou, Y. Author:  ... P Simitsis, A Vassiliou, Y ...

Publication - gpapas - 04/15/2013 - 21:49 - 0 comments - 0 attachments

A Procedural Approach to Schema Evolution

... updates can cause problems. In this paper, we present a procedure which safely adds a fact type to a conceptual schema. This procedure, as well as being used for ...

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