An improved solution for designing and/or evaluating a circuit is
provided. A rule violation can be detected in design data for the circuit
and a prediction can be generated based on an adjustment to the design
data. For example, multiple predictions can be generated based on an
adjustment window for an adjustable parameter in the design data. The
predictions can be displayed to a user, who can determine a desired
modification to the design data. The modification can be implemented by
the user and/or automatically implemented by a circuit design tool.