Abstract: Methods, systems, and computer readable mediums for determining a system performance indicator representative of the overall operation of a network system are disclosed. According to one example, a method includes obtaining, from a plurality of infrastructure elements included in a network system, performance metric data associated with a plurality of application processes being executed by the plurality of infrastructure elements. The method further includes consolidating analogous portions of the performance metric data into a plurality of performance metric data groups irrespective of the plurality of infrastructure elements and utilizing the plurality of performance metric data groups to determine a system performance indicator (SPI) value that represents an overall performance level of the network system.