For inspectors that are individual system based, SQL, Windows, Cisco IOS, Cisco ASA, HP Procurve, Fortigate etc build a data repository representing aspects of the systems to be used in an environmental metric - first such thought is a count of the number of systems in that environment for that inspector.Consider the possibility of building a metric adding number of systems across inspectors, i.e. number of network devices across Cisco IOS, Cisco ASA, Fortigate etc