1. A system for proactive management of performance of a software application, comprising A. a software development environment, B. a performance monitor in communications coupling with the software development environment, the performance monitor monitoring any of creation, revision and testing of the software application in the software development environment, and C. the performance monitor signaling an alert upon determining that execution of the application and/or a component thereof by a user and/or consumption of digital data processing resources during such execution is anticipated to exceed one or more quotas for a class to which the user belongs.