Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Why workflows break
T2 - 2012 IEEE 8th International Conference on E-Science (e-Science)
AU - Zhao, Jun
AU - Gomez-perez, Jose Manuel
AU - Belhajjame, Khalid
AU - Klyne, Graham
AU - Garcia-cuesta, Esteban
AU - Garrido, Aleix
AU - Hettne, Kristina
AU - Roos, Marco
AU - De Roure, David
AU - Goble, Carole
PY - 2012/10
Y1 - 2012/10
N2 - Workflows provide a popular means for preserving scientific methods by explicitly encoding their process. However, some of them are subject to a decay in their ability to be re-executed or reproduce the same results over time, largely due to the volatility of the resources required for workflow executions. This paper provides an analysis of the root causes of workflow decay based on an empirical study of a collection of Taverna workflows from the myExperiment repository. Although our analysis was based on a specific type of workflow, the outcomes and methodology should be applicable to workflows from other systems, at least those whose executions also rely largely on accessing third-party resources. Based on our understanding about decay we recommend a minimal set of auxiliary resources to be preserved together with the workflows as an aggregation object and provide a software tool for end-users to create such aggregations and to assess their completeness.
AB - Workflows provide a popular means for preserving scientific methods by explicitly encoding their process. However, some of them are subject to a decay in their ability to be re-executed or reproduce the same results over time, largely due to the volatility of the resources required for workflow executions. This paper provides an analysis of the root causes of workflow decay based on an empirical study of a collection of Taverna workflows from the myExperiment repository. Although our analysis was based on a specific type of workflow, the outcomes and methodology should be applicable to workflows from other systems, at least those whose executions also rely largely on accessing third-party resources. Based on our understanding about decay we recommend a minimal set of auxiliary resources to be preserved together with the workflows as an aggregation object and provide a software tool for end-users to create such aggregations and to assess their completeness.
U2 - 10.1109/eScience.2012.6404482
DO - 10.1109/eScience.2012.6404482
M3 - Conference contribution/Paper
SN - 9781467344678
SP - 1
EP - 9
BT - E-Science (e-Science), 2012 IEEE 8th International Conference on
PB - IEEE
Y2 - 8 October 2012 through 12 October 2012
ER -