After all what I prefer the most is Systems Engineering:

"The interdisciplinary approach governing the total technical and managerial effort required to transform a set of customer needs, expectations, and constraints into a product solution and support that solution throughout the product's life.

This includes the definition of technical performance measures, the integration of engineering specialties towards the establishment of a product architecture, and the definition of supporting product life-cycle processes that balance cost performance and schedule objectives. "

FAQ on CMM Coverage