1. A data structure used by a color management system to model color behavior of a color device, comprising: a measurement component comprising a collection of measurements, wherein each measurement represents at least one control signal by which a sample color measurement is obtained by effecting a corresponding color output from or input to the color device, or a set of color coordinates which correlate to said at least one control signal, or both; and a characterization process component comprising platform-independent code for a characterization process which processes said collection of measurements to produce a color behavior model for the color device.