Arrangement and a Method Relating to Performance Monitoring

An arrangement for monitoring performance in a network comprising a number of network nodes, services and users, in real-time, said arrangement comprising information collecting means, generating means for generating performance indicators (KPIs) depending on a number of definition performance parameters for one or more of said network nodes,

• wherein the generating means comprise or communicate with decision graph generating means adapted to generate decision graph structures representing respective KPI values and combination probabilities in dependence of KPI definition performance parameters and in dependence of additional or correlation parameters, and in that the generating means comprise decision graph content updating means adapted to update the decision graph parameters using said collected information to enable prediction of KPI values and/or performance parameters at a single point in time and/or variation thereof over a given time interval and in that message sending means are provided which are adapted to send out messages or notifications relating to one or more prediction results.