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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

Design Metrics for Data Warehouse Evolution

... same design construct. The behavior of the chosen design in the presence of evolution events is an important parameter for this choice. ...

Publication - gpapas - 04/16/2013 - 08:16 - 0 comments - 0 attachments

Adaptive Query Formulation to Handle Database Evolution

... queries and applications, mainly due to the fact that, in most cases, their role as integral parts of the environment is not given the ... the queries are not designed to handle database evolution. In this paper, we introduce a graph-based model that uniformly captures ...

Publication - gpapas - 04/16/2013 - 07:38 - 0 comments - 1 attachment

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

... 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

Management of the Evolution of Database-Centric Information Systems

... Venue:  In International Workshop on Database Preservation (PresDB 07) ...

Publication - gpapas - 04/16/2013 - 07:05 - 0 comments - 1 attachment

Hecataeus: A Framework for Representing SQL Constructs as Graphs

... 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

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

Policy-regulated Management of ETL Evolution

... 10 - 49 In this paper, we discuss the problem of performing impact prediction for changes that occur in the schema/structure of the data warehouse sources. We abstract ... of our approach over real-world ETL workflows used in the Greek public sector. (Data Warehouses, ETL, Evolution, Impact of ...

Publication - gpapas - 04/16/2013 - 04:05 - 0 comments - 0 attachments