A method includes receiving first measurement data from a first device. The first device may be a first element of a communication path. The first measurement data may correspond to a first measured parameter associated with performance of the communication path. The method further includes receiving second measurement data from a second device. The second device may be a second element of the communication path. The second measurement data may correspond to a second measured parameter (distinct from the first measured parameter) associated with performance of the communication path. The method further includes determining a first service quality index value corresponding to performance of the communication path based on the first measurement data and the second measurement data.