1. A computer-implemented method, comprising: instantiating a first computer program that is executable using one or more processors; using the first computer program, defining a first group comprising a plurality of application systems and a second group comprising a plurality of application systems; correlating the plurality of application systems within the first group to generate a correlation model; storing the correlation model in a computer-readable storage medium; and providing a target group comprising a plurality of application systems based on the correlation model.