1. A method of providing enhanced monitoring and enforcement of usage policy and security for a data processing system network, said method comprising: monitoring events occurring on said system; storing data identifying said events as system event data; analyzing said system event data via a software classifier that includes a set of initial policy constraints; and when said software classifier indicates that a particular system event data does not comply with said initial policy constraints, initiating a process that: enables a system administrator to modify and update said initial policy constraints to account for said particular system event data and generate refined policy constraints; and responsive to said modifying of said initial policy constraints, implements an updated software classifier that monitors and enforces said usage policy and security of said network via said refined policy constraints.