Before revision: In behavioral science, system theory and dynamic system modeling The behavioral approach to systems and control theory was initiated in the late 70's by J. C. Willems as a result of resolving inconsistencies present in classical approaches based on state-space, transfer function, and convolution representations.
After revision: The behavioral approach to systems and control theory was initiated in the late 70's by J. C. Willems as a result of resolving inconsistencies present in classical approaches based on state-space, transfer function, and convolution representations.