RASP: Reliability. Accessibility. Scalability. Performance.

Is anyone familiar with that acronym?
I heard it last year and for some reason it has just resonated in my head ever since.. as the perfect (for me) way to classify goals/areas of "Performance".

.. even enough to blog about it:
Goldblog - Performance Acronym: RASP


.. or can anyone else come up with a good concise taxonomy of performance goals/areas? (that works in a semi pronounceable acronym)