1. A machine assisted method of executing procedure steps for a complex process facility comprising the steps of: storing electric signals representative of logic for step-by-step procedures for the complex process facility, at least some steps of which require verification of a selected process condition; generating parameter signals representative of the real-time value of predetermined process parameters; sequentially electrically selecting a step of one of said stored step-by-step procedures as a current step; repetitively electrically executing the logic for the current step including processing selected parameter signals to determine the real-time state of the process condition to be verified by a current step which requires verification; generating a visual representation of said current step including a visible textual statement of the condition to be verified, a visual indication of the real-time state of the selected process condition to be verified by the current step, and, where the state of the selected condition indicates that it is not verified, a visible textual statement of recommended operator action; electrically generating instructions for the operator to electrically generate an operator response signal indicating completion of the recommended action in response to a textual statement of recommended operator action; repetitively updating the visual indication of the state of the selected process condition to be verified by the current step in response to changes in the selected process condition, including changes as a result of operator response to the recommended action; and electrically selecting a next step in said one stored step-by-step procedure in response to an operator response signal indicating completion of the recommended action only for such a response signal generated after a repetition of said parameter signal processing step indicates that the process condition has become verified.