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Authors: Ulrich Lampe ; Dieter Schuller ; Julian Eckert and Ralf Steinmetz

Affiliation: Technische Universität Darmstadt, Germany

Abstract: The service selection problem (SSP) – i.e., choosing from sets of functionally equivalent services in order to fulfill certain business process steps based on non-functional requirements – has frequently been addressed in literature considering deterministic values for the Quality of Service (QoS) attributes. However, the usage of deterministic values does not reflect the uncertainty about the actual value of an attribute during execution, thus ignoring the risk of QoS violations. In the paper at hand, a simulative step, based on stochastic QoS attributes, is performed as complement for optimally solving the SSP using linear programming methods. With this two-step approach, uncertainties in the selected set of services can be explicitly revealed and addressed through repeated selection steps, thus allowing to prevent the violation of QoS restrictions much more effectively.

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Paper citation in several formats:
Lampe, U.; Schuller, D.; Eckert, J. and Steinmetz, R. (2010). Optimizing Service Selection for Probabilistic QoS Attributes. In Proceedings of the 4th International Workshop on Architectures, Concepts and Technologies for Service Oriented Computing (ICSOFT 2010) - ACT4SOC; ISBN 978-989-8425-20-1, SciTePress, pages 92-101. DOI: 10.5220/0003051000920101

@conference{act4soc10,
author={Ulrich Lampe. and Dieter Schuller. and Julian Eckert. and Ralf Steinmetz.},
title={Optimizing Service Selection for Probabilistic QoS Attributes},
booktitle={Proceedings of the 4th International Workshop on Architectures, Concepts and Technologies for Service Oriented Computing (ICSOFT 2010) - ACT4SOC},
year={2010},
pages={92-101},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003051000920101},
isbn={978-989-8425-20-1},
}

TY - CONF

JO - Proceedings of the 4th International Workshop on Architectures, Concepts and Technologies for Service Oriented Computing (ICSOFT 2010) - ACT4SOC
TI - Optimizing Service Selection for Probabilistic QoS Attributes
SN - 978-989-8425-20-1
AU - Lampe, U.
AU - Schuller, D.
AU - Eckert, J.
AU - Steinmetz, R.
PY - 2010
SP - 92
EP - 101
DO - 10.5220/0003051000920101
PB - SciTePress

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