Authors: Mullins, C.S. Author: Mullins, C Year: ...
Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments
... 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, 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
... 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
... 50 - 99 In this paper, we address the issues related to the evolution and maintenance ... sources. The data of the data warehouse is used primarily in organizational decision-making and may be strategic. Therefore, the schema ...
Publication - erhard - 04/17/2013 - 09:05 - 0 comments - 0 attachments
... 10 - 49 In this paper we present a formal model for the support of temporal schema versions in object-oriented databases. Its definition is partially based on a generic ...
Publication - fgrandi - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... view system to support capacity-augmenting views. In this paper, we present algorithms that implement the complete set of typical ...
Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments
... of integrated Web data. One of the main challenges in these systems is to deal with the volatile and dynamic nature of Web sources. In this work we address the effects of adding/removing/changing Web sources and ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 0 attachments
... provide high level quality of data and quality of service. In the DWQ project we have proposed an architectural framework and a repository ... metadata which describes all the data warehouse components in a set of metamodels to which is added a quality metamodel, defining for each ...
Publication - cat - 04/17/2013 - 05:27 - 0 comments - 1 attachment
... efforts directed towards evolving data definitions in object-oriented database systems. The emphasis is on their ability to ... modified. This approach is an extension of techniques used in artificial intelligence for knowledge representation. It extends previous ...
Publication - cat - 04/16/2013 - 18:49 - 0 comments - 1 attachment
... engineers (designers, developers) still have to face in their everyday work is the evolution of working database systems. As a step for the solution of this problem in this paper we propose MeDEA, which stands for Metamodel-based Database ...
Publication - jlloret - 04/16/2013 - 14:49 - 0 comments - 0 attachments
... 323.43 KB Database transformations arise in many different settings including database integration, evolution of ... paper surveys approaches that have been taken to problems in these settings, assesses their strengths and weaknessesd develops ...
Publication - erhard - 04/16/2013 - 11:38 - 0 comments - 1 attachment
... 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
... heterogeneous schemata for various database related tasks. In particular, schema versioning, and its weaker companion, schema evolution, ... to retain current data and software system functionality in the face of changing database structure. Schema versioning and schema ...
Publication - cat - 04/16/2013 - 04:49 - 0 comments - 0 attachments
... construction and maintenance of data warehouses (views) in large-scale environments composed of numerous distributed and evolving ... the problem of schema changes of ISs, while previous work in this area, such as incremental view maintenance, has mainly dealt with data ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 0 attachments
... 100 - 499 In engineering applications, multiple copies of object descriptions have to coexist in a single database. A scheme is proposed that enables users to explicitly ...
Publication - cat - 04/15/2013 - 22:49 - 0 comments - 0 attachments
