ADAPTIVE CHOICE FOR CONTEXT SOURCE REQUEST

摘要

Method and service node (10) for providing a service in a communication network (1). The service node (10) is arranged to evaluate a request comprising an expression (A), a function of multiple elements. The elements (eventually) relate to data originating from context sources (B, D, E) available in the communication network (1). Each of the one or more context sources (B, D, E) has an associated context source weight for a query by the service. The context source (E) for which evaluation of the expression has a lowest expression evaluation weight is determined, based on the associated context source weights, and this context source (E) is interrogated first.