On Establishing QoS for Composite Services

Abstract

Service  composition  is  a  process  of combining existing atomic services to perform a complex task. To choose atomic services for a composite service, usually  both  functionality  and  quality  of  service  (QoS) are  considered.  The  QoS  of  the  composite  service obviously  depends  on  QoS  of  atomic  services.  In  this research,  we  propose  a  simple  approach  for  the composite  service  and  atomic  services  to  establishing suitable  QoS  values.  Experiment  shows  that  our approach  is  feasible  and  significantly  better  than  the exhaustive approach in performance aspect.