N1 Grid Architecture Realized: Measurable Requirements 
by Jason Carolan, Scott Radeztsky, Paul Strong, and Ed Turner
March, 2005
This article discusses using the Sun architecture methodologies to translate customer business drivers and stated functional and operational requirements into a measurable Critical to Quality (CTQ) baseline for architectural analysis and solution testing. This article is the entire fifth chapter of the Sun BluePrints book N1 Grid Realized: Preparing, Architecting, and Implementing Service-Centric Data Centers.