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Details for article 2 of 10 found articles
| Title: |
A stochastic model for workflow QoS evaluation |
| Author: |
Xia, Yunni Wang, H.P. Huang, Y. Yuan, L. |
| Appeared in: |
Scientific programming |
| Paging: | Volume 14 (2007) nr. 3-4 pages 251-265 |
| Year: |
2007-01-26 |
| Contents: |
Quality (QoS) prediction is one of the most important research topics of workflow. In this paper, we propose a stochastic model to evaluate QoS (make-span, reliability and cost) of workflow systems based on QWF-net, which extends traditional WF-net by associating tasks with firing-rate, failure-rate and cost-coefficient. Through a case study, we show that our framework is capable of modeling real-world workflow-based application. Also, Monte-carlo simulation in the case study indicates our analytical methods are consistent with simulation. We also present a sensitivity analysis technique to identify QoS bottleneck.The paper concludes with a comparison between our approach and related work. |
| Publisher: |
IOS Press |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 2 of 10 found articles
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