Evaluation Models question whether the proposed change is "good" or "bad". While that is a drastic oversimplification, the goal is to define the place in terms of positive and negative values in order to inform decisions. Evaluation Models seek to develop a series of measures by which to assess how fit a specific change (or several alternatives) is for the place. These metrics will be different for each study, but how we classify them as "good or bad" may be fairly consistent. Based on change, we may classify a portion of the landscape as attractive, vulnerable, or at some degree of risk. Attractive areas are locations where a change is expected to be successful. Vulnerable areas are locations where a change is expected to damage an aspect of the place and its people. The decision models will have to carefully balance attractiveness, vulnerability, and risk.