to whether or not they will assume the added construction costs to achieve a sustainable design. 2. What constraints do the decision makers face? Again, decision makers must determine if long-run cost savings will outweigh the initial up-front investment in sustainability. 3. What interaction exists? Designers with a vested interest in sustainability should be on board from the beginning of the design phase in order to ensure the most efficient usage of green building technologies and strategies. 4. What information is beingprocessed and what is beingpredicted? At the design phase, theoretical values are being processed to predict life-cycle savings. In the case of the Rinker Hall model above, actual annual costs are used to provide evidence that the savings do exist. 5. What adjusts to assure consistency? Adjustments for building horsepower, and total hours of operation can be made in order to allow for even more consistency. The stated hypothesis of the thesis poses the question of whether or not hard cost data on resource consumption can be used to accurately evaluate green building performance. Through taking into account all applicable costs and modification factors to establish a methodology for comparison, the previous study showed that hard cost data can in fact be a reliable predictor of building performance. The fact that hard cost data alone nearly pays back the up-front expenditures before taking into account other factors such as soft cost savings, community/environmental implications, and others proves that substantial improvement in resource consumption hard costs are an effective display of the greenness of a high performance building. Through conducting the literature review, it became apparent that there is a lack of extensive data on actual performance for sustainable, high performance buildings. This is