In one example embodiment, a machine implemented method is provided. The method comprises sampling a plurality of values of a parameter associated with a software service by monitoring said parameter; determining a workload signature for the software service based on statistical analysis performed during a first sampling period; and classifying the workload of said software service by selecting, based on said plurality of values, a first workload classification from a plurality of predefined workload classifications, wherein the workload of the software service is reclassified to a second workload classification, based on a workload signature calculated during a second sampling period.