As we raise the number of control variables (ie. complexity) we reach a point were the deterministic approach (ie. a fix recipe) will not work.
Intuitively we know that if we have a few variables we could devise a fix recipe. But, if the number of variable is large, than the multiple combination of variables (n x n) make it impossible to have a "fix recipe".
* Sterman, John D. (2000). Business Dynamics . McGraw Hill.
CMMI product team, CMMI for Development (CMMI-DEV), Version 1.2, Carnegie Mellon Univ., Aug. 2006.
CMMI Maturity level Level 1 Initial Level 2 Managed Level 3 Defined Level 4 Quantitatively Managed Level 5 Optimized Process unpredictable, poorly controlled, and reactive Process characterized for project and is often reactive Process characterized for the organisation and is proactive Process measured and managed Focus on continuous process improvement