Evaluation of the effectiveness of defensive avionics systems is a complex process involving assimulation of literally hundreds of test data elements associated with the system under test, engagement scenarios, conditions, associate multi-spectual avionics, weapos, threats, tactics, etc. Ec effectiveness evaluations are further complicated by a growing number as well as an ever-changing perception of threat capabilities of the integrated air defense infrastructure developed through an evolving scientific technology base. Graphic visualization of these evaluations interactions and interdependencies would substantially improve this process and provide insight into the relationships of these design variables which impact overall ew system effectiveness. Spectra systems proposes to synthesize a visualization ec effectiveness simulation employing off-the-shelf digital models and graphic displays in an object oriented design approach to develop early operational simulation demonstration capability with long term growth potential.