Abstract: A method consists, when N web services need to be invoked sequentially for a communication equipment (T1), in generating a dedicated message containing requests relative to these N web services, and in transmitting this dedicated message to a server (S1) in order it analyzes the requests it contains, and then invokes the N web services defined by these requests for this communication equipment (T1).

Abstract: A device (D) is intended for optimizing composite applications comprising at least two orchestrated activities participating to at least one process. This device (D) comprises i) an analyzing means (AM) arranged for determining orchestrated activities contained into a composite application to be optimized and dependencies between these activities, and ii) an optimizing means (OM) arranged for determining a new orchestration between the determined activities which allows the composite application to execute requests of users in a minimal time, according to the determined dependencies and to predefined rules, and for outputting an optimized composite application based on the new orchestration.