1. Jordan, D., Evdemon, J., Alves, A., Arkin, A., Askary, S., Barreto, C., Bloch, B., Curbera, F., Ford, M., Goland, Y., et al.: Web services business process execution language version 2.0. OASIS standard 11 (2007)
2. Dunn, W.L., Shultis, J.K.: Exploring Monte Carlo Methods. Elsevier (2011)
3. Cardoso, A.J.S.: Quality of service and semantic composition of workflows. PhD thesis, Univ. of Georgia (2002)
4. Jaeger, M., Rojec-Goldmann, G., Muhl, G.: QoS aggregation for web service composition using workflow patterns. In: Proceedings of the Eighth IEEE International Enterprise Distributed Object Computing Conference, EDOC, pp. 149–159 (2004)
5. Lecture Notes in Computer Science;N. Ben Mabrouk,2009