Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing an experiment for a workforce analytics system. One of the methods includes identifying team members who conduct work using a heterogeneous set of software tools including third party software tools. An experiment group of team members and a control group of team members are identified. Experiment activity data is received from use by the experiment group of the set of heterogeneous software tools and control group activity data is received from use by the control group of the set of heterogeneous software tools. A metric by which to measure the effect of a process change is identified. The effect of the process change is determined according to the metric and based on the experiment activity data and the control group activity data. Action is taken based on the effect of the process change.