Search: in, Database s.e., Simitsis, A

5 results

Results

Metrics for the Prediction of Evolution Impact in ETL Ecosystems: A Case Study

... ETL architect needs to design and improve an ETL design in a way that satisfies both performance and correctness guarantees and often, she has to choose among various alternative designs. In this paper, we focus on ways to predict the maintenance effort of ETL ...

Publication - pvassil - 04/25/2013 - 08:40 - 0 comments - 0 attachments

What-If Analysis for Data Warehouse Evolution

... 10 - 49 In this paper, we deal with the problem of performing what-if analysis for changes that occur in the schema/structure of the data warehouse sources. We abstract software ...

Publication - pvassil - 04/17/2013 - 04:49 - 0 comments - 0 attachments

Language Extensions for the Automation of Database Schema Evolution

... Systems face the problem of maintaining their systems in the presence of frequently occurring changes in any counterpart of it. In other words, when a change occurs in any point of ...

Publication - gpapas - 04/16/2013 - 08:27 - 0 comments - 1 attachment

A Randomized Approach for the Incremental Design of an Evolving Data Warehouse

... views that determine its schema and its content in terms of the schema and the content of the data sources. DW applications ... against the cost of maintaining the materialized views. In an evolving DW application, new queries need to be answered by the DW. An ...

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

Rule-based Management of Schema Changes at ETL sources

... 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