A simulation may be performed through (1) solving a set of equations (a mathematical model), constructing a physical (scale) model, (3) staged rehearsal, (4) game (such as wargames), or a computer graphics model (such as an animated flowchart).
Thigh gap. A thigh gap is a space between the inner thighs of some women when standing upright with knees touching. A thigh gap has become an aspect of physical attractiveness that has been associated with fragility and femininity. In the United States, it has been reported that among teenage girls, a gap has become a beauty ideal.
Performance gap analysis deals with inspecting a situation, usually from a business perspective, to see how an organization, branch or individual can reach certain necessary goals. Performance gap refers to the distance between the current situation and the desired situation, or the goal.