Abstract: A parameter visualization method and apparatus are disclosed. In one embodiment, a method includes processing a selection of a parameter based on an action associated with one parameter, algorithmically calculating compatibility of other parameters based on the selection, and simultaneously displaying at least one allowable parameter (e.g., of the other parameters) in a first visual state and displaying at least one excluded parameter (e.g., of the other parameters) in a second visual state. The parameter and the other parameters may be displayed in a graphical representation, and the graphical representation may be refreshed when another selection is processed based on an action (e.g., the action may a movement of a pointing device over the graphical representation of the parameter, a data input into an attribute field and/or a physical selection by the pointing device, etc.). The action may be associated with the at least one allowable parameter.