CDC Science Impact Framework
The framework illustrates the "Historical Tracing Method" with 5 levels of CDC scientific influence that define degrees of impact that may not be chronological (the degree of impact is not necessarily a progression; therefore, events captured may not be reflected at every level). In addition, there may be loop-back at any point. Health outcomes are the ultimate goal - driven by the 5 levels of influence. Key indicators are listed for each level of influence as a way to track and qualify events at each level of influence. These indicators are flexible, and the ones listed are some examples.