TY - JOUR A1 - Yang, Yong A1 - Dumas, Marlon A1 - Garcia-Banuelos, Luciano A1 - Polyvyanyy, Artem A1 - Zhang, Liang T1 - Generalized aggregate quality of service computation for composite services JF - The journal of systems and software N2 - This article addresses the problem of estimating the Quality of Service (QoS) of a composite service given the QoS of the services participating in the composition. Previous solutions to this problem impose restrictions on the topology of the orchestration models, limiting their applicability to well-structured orchestration models for example. This article lifts these restrictions by proposing a method for aggregate QoS computation that deals with more general types of unstructured orchestration models. The applicability and scalability of the proposed method are validated using a collection of models from industrial practice. KW - Service-oriented computing KW - Service composition KW - Service orchestration KW - Quality of service Y1 - 2012 U6 - https://doi.org/10.1016/j.jss.2012.03.005 SN - 0164-1212 VL - 85 IS - 8 SP - 1818 EP - 1830 PB - Elsevier CY - New York ER -