Any high-level capability needed by an organization rests atop a broad and deep capability infrastructure, comprised of many layers of composite capabilities, each depending upon the integration of lower-level capabilities.

The whole capability infrastructure rests on the two main systems: the Human System and the Tool System.

Underpinning the Human System & the Tool System are the individual basic human capabilities (sensory, perceptual, mental & motor) which are affected by skills, knowledge and training as well as attitudes, spirit beliefs etc.