The following definitions are relevant to the Uncertainty Performance Domain with the exception of . . . Question 6 options: Uncertainty, which is the lack of understanding and awareness of issues, events, paths to follow. Baseline or the approved version of a work product used as a basis for comparison to actual results. Ambiguity or a state of being unclear, having difficulty in identifying the cause of events, or having multiple options from which to choose. Volatility or the possibility for rapid and unpredictable change