The Evo-Step is planned as a sequence of Step-Elements. Ignition On is to be done first. Followed by Check Thrust OK. Ignite Motors can be done anytime in relation to the first two, but, since it is in the brackets, it, as well as the other two events in the brackets, must be done Before Release Tie. The use of the => icon or the term “Before” is a matter of taste; and both are used here for illustrative purposes.
This Concept entered by Diane O'Brien.