Intuition on Control Theory, Engineering and Systems Review w.r.t. Electrical and Mechanical Application The design of a control mechanism as a realm is unique and demanding as is profoundly rooted in theory and the engineering aspect to achieve the desired; control objective. An engineer is required to articulate theoretical techniques in the analysis of the behavior of a system about input, system dynamics and feedback approach. The ultimate aim corresponds with the ability of output to follow design reference specification successfully. Simply, an error is the basis for control that is achieved through comparison of an output signal to design reference (one approach). The error signal is feedback as input to the system hence brings current output much closer to the reference point. That is control engineering. Control systems may be used in mechanical or electrical systems. For efficiency of motion in electrical drives, mechanical moving parts, and other electrical system