Search: 0, a, ER / UML

9 results

Results

A Taxonomy for Schema Versioning Based on the Relational and Entity Relationship Models

... in databases, especially in systems which necessitate a high volume of structural changes or where structural change is difficult. This paper presents a taxonomy of changes applicable to the Entity-Relationship Model together with ...

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

Defining Metrics for Conceptual Schema Evolution

... 273.6 KB It is generally believed that a well-designed Conceptual Schema will remain stable over time. However, ... needs and database structures. This paper sets up a framework for stability of conceptual schemas and proceeds to develop a set ...

Publication - cat - 04/17/2013 - 04:16 - 0 comments - 1 attachment

Stones Falling in Water: When and How to Restructure a View–Based Relational Database

... J Rubio, A.L. Zapata, M.A. Year:  ...

Publication - jlloret - 04/16/2013 - 15:05 - 0 comments - 0 attachments

Evolution of XML schemas and documents from stereotyped UML class models: A traceable approach

... Rodriguez, A Rubio, A.L. Zapata, M.A. ...

Publication - jlloret - 04/16/2013 - 15:05 - 0 comments - 0 attachments

MeDEA: A database evolution architecture with traceability.

... J Rubio, A Zapata, M ... ... work is the evolution of working database systems. As a step for the solution of this problem in this paper we propose MeDEA, which ...

Publication - jlloret - 04/16/2013 - 14:49 - 0 comments - 0 attachments

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

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

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

Evolutionary database design

... design methods. The approach distinguishes clearly between a conceptual and a logical database design. A conceptual schema models the relevant aspects of ...

Publication - cat - 04/16/2013 - 01:49 - 0 comments - 0 attachments