DOTLAN EveMaps

1 Observation: the collection of data by means of the senses

2 Orientation: the analysis and synthesis of data to form one's current mental perspective

3 Decision: the determination of a course of action based on one's current mental perspective

4 Action: The physical playing-out of decisions Of course, while this is taking place, the situation may be changing.
It is sometimes necessary to cancel a planned action in order to meet the change.